Internet people please help!!! I need to submit the answer now!!

(1) According to scientists' estimates, there are at least 4 million pounds of garbage orbiting the earth. (2) The majority of this space junk, or "orbital debris," comes from old spacecraft that remain floating into space long after they have ceased to serve any function (3) A bit of trash drifting through the infinite expanse of outer space may seem relatively harmless, but
the debris is beginning to cause serious problems for astronauts and scientists.

What change, if any, is needed to correct sentence 2?

A Change "comes from" to "comes out of
B Change "into" to "in"
C Change "to serve" to "serving"
D Make no change