Orkut creator Orkut Buyukkokten launched a new mobile only social networking platform after the closure of his earlier site What is the name of this new social network application

Introduction / Context:
Before the rise of modern social networks such as Facebook and Instagram many internet users especially in countries like India and Brazil were active on Orkut. After Orkut was shut down its creator Orkut Buyukkokten returned with a new social networking platform designed mainly for mobile users. This question asks you to identify the name of that new application.

Given Data / Assumptions:

• The question refers to Orkut Buyukkokten the original creator of Orkut.
• He later launched a new social network.
• The platform was described as mobile only.
• The options list four short names Caller Hello Hi and Hay.

Concept / Approach:
The best approach is to use memory of technology news where Orkut Buyukkokten announced his comeback with a new app. The brand name was chosen to be friendly easy to remember and consistent with the concept of greeting and making friends. Matching this idea with the given options points strongly toward one particular choice.

Step-by-Step Solution:
Step 1: Recall technology news articles about the launch of a new social network by Orkut creator Orkut Buyukkokten. Step 2: These reports mentioned a mobile focused app designed around communities and interests. Step 3: The name of this new social network was Hello which fits the idea of greeting people and starting conversations. Step 4: Compare this remembered name with the options given in the question. Step 5: Since Hello exactly matches the reported brand name option B Hello is the correct answer.

Verification / Alternative check:
You can verify by elimination based on plausibility and familiarity. No major technology news mentioned social networks called Caller Hi or Hay linked to Orkut Buyukkokten. However there were repeated references in articles and app store listings to a new network named Hello created by the founder of Orkut. Therefore cross checking with your general reading confirms that Hello is the only suitable answer.

Why Other Options Are Wrong:
Caller suggests a calling or contact management app rather than the well known social platform from this context. Hi is a common greeting but there was no prominent mobile social network of that name associated with Orkut creator. Hay also does not match any widely known product or brand created by Orkut Buyukkokten.

Common Pitfalls:
Because all the options are short greeting like words exam takers may guess randomly without recalling the specific news item. Another pitfall is to confuse Hello with other applications or messaging features from different companies. In competitive exams it is important to read technology current affairs regularly so that these specific brand names stay clear in your mind.

Final Answer:
The new mobile only social networking app launched by Orkut creator Orkut Buyukkokten is called Hello.