What is the relationship of the first partof the sentence below (before thecomma) to the second part?

“Because they are more objectivethan we are about our problems,they can open our eyes tosolutions that we are tooemotionally distressed to see.”(Lines 10–13)The first part

A. describes an event that comes before one in the second part
B. contrasts with the second part
C. gives an example of the second part
D. gives a reason for the second part