One source of conflict are differences, which include value systems and personality characteristics that account for individual idiosyncrasies and disagreements.

One source of conflict are "personal" differences.

Indeed, we are generally extraordinary individuals, so it bodes well that we will all have contrasts, correct? Indeed, we are regularly attracted to other people who have some particular contrasts from us. The familiar maxim expresses that "opposites are drawn toward each other", which is regularly valid. The issue is that distinctions that draw us together can now and again turn into a wellspring of contradiction.

Ithink the answer is b. shakeri hope im not wrong : )

The correct answer is b