Final answer:
The converse of the given statement 'If you are human, then you were born on Earth' is option (a) 'If you were born on Earth, then you are human.'
Step-by-step explanation:
The converse of a conditional statement is formed by reversing the hypothesis and the conclusion. The original statement given is If you are human, then you were born on Earth. The converse of this statement would be If you were born on Earth, then you are human. Therefore, the answer to the question is (a) If you were born on Earth, then you are human.