Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions.
Some kinds of fish live in fresh water. Others live in sea water.
A.Some kinds of fish live in fresh water, for others live in sea water.
B.Some kinds of fish live in fresh water, and others live in sea water.
C.Some kinds of fish live in fresh water because others live in sea water.
D.Some kinds of fish live in fresh water, so others live in sea water.