Which country has Lusaka as its capital city and Kwacha as its currency?

Introduction / Context:
This question tests your knowledge of world capitals and currencies, a staple of general knowledge and competitive examinations. Many African countries have unique combinations of capitals and currencies, and knowing these pairs can help you answer multiple geography and international awareness questions. Here you must identify which country uses Lusaka as its capital and Kwacha as its currency.

Given Data / Assumptions:

• The capital city mentioned is Lusaka.
• The currency mentioned is the Kwacha.
• Options are Yemen, Uganda, Zambia and Somalia.
• We assume standard international recognition of capitals and currencies.

Concept / Approach:
Zambia is a landlocked country in southern Africa whose capital is Lusaka and whose currency is the Zambian Kwacha. Other African countries, like Malawi, also use a currency called Kwacha but have different capitals. The approach is to match both the capital and currency correctly to the country. Since Lusaka is clearly associated with Zambia, and Kwacha is its national currency, the correct answer is straightforward once you recall this pairing.

Step-by-Step Solution:
Step 1: Recall that the capital of Zambia is Lusaka, a major administrative and commercial centre.Step 2: Zambia's currency is the Zambian Kwacha.Step 3: Yemen's capital is Sana'a (politically complex but commonly cited), and its currency is the Yemeni Rial, not Kwacha.Step 4: Uganda's capital is Kampala, and its currency is the Ugandan Shilling.Step 5: Somalia's capital is Mogadishu, and its currency is the Somali Shilling.Step 6: Since only Zambia matches both Lusaka and Kwacha, option C is correct.

Verification / Alternative check:
Geography references and world factbooks list Lusaka as the capital of Zambia, and the Zambian Kwacha as its currency. When cross checking, note that Malawi also uses a currency called Kwacha, but its capital is Lilongwe, not Lusaka. None of the other countries in the options use both Lusaka as capital and Kwacha as currency, confirming that Zambia is the required answer.

Why Other Options Are Wrong:
Yemen: Uses the Yemeni Rial and has a different capital; neither Lusaka nor Kwacha is associated with Yemen.

Uganda: Capital is Kampala and currency is the Ugandan Shilling, so it does not match the pair given.

Somalia: Capital is Mogadishu and currency is the Somali Shilling, also not matching the described capital and currency.

Thus, these countries do not satisfy the conditions stated in the question.

Common Pitfalls:
Students may remember that “Kwacha” is an African currency but forget which exact countries use it. This can lead to random guessing among African options. Another pitfall is not paying attention to both capital and currency; the question requires matching both to the same country. To avoid confusion, it helps to remember at least a few capital currency pairs like Zambia – Lusaka – Kwacha and Malawi – Lilongwe – Kwacha.

Final Answer:
The country whose capital is Lusaka and whose currency is the Kwacha is Zambia.