Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine which sentence can be inferred from the statement. Incorrect choices change the meaning in important ways or have details that are not mentioned in the statement. Indicate your answer as 1,2, or 3 corresponding to the choice number of the selected sentence.
Input: Statement: If that happened so quickly on Earth, why not on Mars, whose early stages of development were quite similar to Earth's? Choices:  1. Mars early stages of development were similar to Earth's 2. That happened both to Earth and to Mars since they had similar developments. 3. Earth's bigger size was what made it different to Mars.

1