The correct answer is D. Meeta asked Sonu if he knew anything about Robots.
The sentence “Do you know anything about Robots, Sonu?” is a question in the present tense. The verb “know” is in the simple present tense, which is used to talk about general truths, habits, and things that are always true. In this case, Meeta is asking Sonu if he has any knowledge about robots in general.
Option A is incorrect because it uses the verb “knows” in the present tense. This would be correct if Meeta was asking Sonu if he knows something specific about robots, such as the name of a particular robot or the history of robots. However, Meeta is not asking about a specific piece of information, so the present tense is not appropriate.
Option B is incorrect because it uses the verb “know” in the simple past tense. This would be correct if Meeta was asking Sonu if he knew something about robots in the past, but she is not. She is asking him if he knows anything about robots now, so the simple past tense is not appropriate.
Option C is incorrect because it uses the verb “had known” in the past perfect tense. This would be correct if Meeta was asking Sonu if he had known something about robots before, but she is not. She is asking him if he knows anything about robots now, so the past perfect tense is not appropriate.