The correct answer is actually D), not A.
Although these are independent clauses indeed, the punctuation in A,B, and C is not correct.
Before 'however' there needs to be a semicolon (;). And after however, you have to put a comma. Therefore D is the correct answer.
After a comma there needs to be a pause in reading. Does A sound correct to you if you make a pause before 'however' and not after it? Of course not.
Answer:
it could be because we have routines and do the same things everyday. Sometimes we don't even realize it.
It’s objective because the person is describing as well as representing the facts of how the girl looks like.
