“Where are you heading _____?” “Lagos”, the children chorused. A) to B) for C) in D) at

Answer 1

"Where are you headed to?" would indicate someone is going to Lagos in this example.

"Where are you headed for?" is somewhat common for people to say, but is not necessarily grammatically correct. It would imply someone is going to Lagos for a reason, like he or she is moving to get away from something.

"Where are you headed in?" is an incomplete sentence, but would be complete if the person or persons asking said "Where are you headed in Lagos?" to ask where in Lagos someone is going.

"Where are you headed at?" is also grammatically incorrect because a person can be at a location, but not going at a location. However, someone could be "going at" someone else, like in a physical altercation (a fight).

With this information you should be able to find your answer.