Three place names in bold are given, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description of these three places: Rourkela, Bokaro and Durgapur.

Introduction / Context:
This question tests general awareness of important industrial towns in India. The three places mentioned are Rourkela, Bokaro and Durgapur. Each of these locations is significant in the context of heavy industry and economic development. The task is to choose the description that best captures what all three towns are particularly known for in Indian economic and industrial geography.

Given Data / Assumptions:

• The places listed are Rourkela, Bokaro and Durgapur.
• All three are well known industrial centres in India.
• The options mention steel plants, coal mines, atomic power plants and sea coast locations.
• We assume standard school-level knowledge of Indian industries and geography.
• The correct description must apply clearly and specifically to all three towns.

Concept / Approach:
Rourkela, Bokaro and Durgapur are all famous for large steel plants that played a key role in India's industrialisation after independence. Rourkela Steel Plant is in Odisha, Bokaro Steel Plant is in Jharkhand, and Durgapur Steel Plant is in West Bengal. These plants form part of the public sector steel network and are regularly cited in textbooks. While some of these areas may also have coal or other resources nearby, their strongest and most direct common association is with the steel industry.

Step-by-Step Solution:
Step 1: Recall that Rourkela in Odisha hosts the Rourkela Steel Plant, one of the early public sector integrated steel plants of India. Step 2: Recall that Bokaro in Jharkhand is home to the Bokaro Steel Plant, another major integrated steel plant. Step 3: Recall that Durgapur in West Bengal houses the Durgapur Steel Plant, again a prominent public sector steel unit. Step 4: Notice that steel production is a strong and direct common feature of all three towns. Step 5: Look at the options and identify that the one referring to major steel plants matches all three locations correctly. Step 6: Check that the other options either do not apply to all three places or are not their principal and famous identity.

Verification / Alternative check:
Though coal mines exist in parts of eastern India, not all of these towns are primarily known for coal mining. Atomic power plants are located at other sites such as Tarapur, Rawatbhata or Kalpakkam, not typically at Rourkela, Bokaro or Durgapur. Also, none of these towns is situated directly on the sea coast; they are inland industrial centres. Standard geography references consistently group these three as examples of major steel plant locations in India, confirming the steel plant option as accurate and unique.

Why Other Options Are Wrong:
Coal mines may exist in nearby regions but are not the central identity of all three towns, and not each place is directly famous among students as a coal mining centre. Atomic power plants are not located at all three of these places, so that description is incorrect. These towns are not on the sea coast; they are inland, so the coastal description does not apply.

Common Pitfalls:
A typical mistake is to associate eastern Indian towns too quickly with coal because of famous coalfields in the region. However, exam questions focus on the most prominent identity of each town. Another mistake is to answer based on partial memory of just one town rather than checking the commonality across all three. It is always better to recall what school textbooks emphasise when grouping such place names together in a single question, which in this case is clearly their steel plants.

Final Answer:
Rourkela, Bokaro and Durgapur are all famous for their major steel plants.