question_answer

Consider the following pairs

Satellite	Name of the discoverer
1. Europa?	Galileo
2. Titan??	Christaan Huygens
3. Titania??	William Herschel

Which of the pairs given above is/are correctly matched?

A) ?1 only?????????? ??????????????

B) ?1 and 2 only

C) ?2 and 3 only????

D) ?1, 2 and 3