Question

What are you thinking about convert to reported speech

Answer 1

what  were u had been thinking about

              hope it helps u

Answer 2

The right answer is: here you are asked a question that about what you are thoughtful about.

It is a question based sentence where someone is asking the subject (you) about what you are wondering about.

In reported speech it has been converted into indirect speech and the situation of making a speech is reported is a clear and specified manner.