has the lowest temperature. has the smallest mass. rotates the slowest. is farthest from the Sun.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: The surface gravity of Pluto is the weakest of the nine planets because Pluto
Possibilities:
- has the lowest temperature.
- has the smallest mass.
- rotates the slowest.
- is farthest from the Sun.

has the smallest mass.