Question

Jan had to pay a large sum in library fines with the book being due two months earlier

With the book being
Although the book were
Whereas the book were
Because the book had been

Answer 1

the answer to the question is d

Answer 2

I think the answer is C, or the third option top-to-bottom. The definition of whereas is to compare to a fact or consider a fact. The fact is: The books were due two months earlier. It would also make you look somewhat more professional with your wording.