d makes sense cause that man would be wasting the other's time as before it had stated he was busy, but he still went to help that man but he just didn't want to pay the set price
it could've also have been c which would be because the man was wasting the others time because he didn't want to hand over his money
b wouldn't be right because even if they are different they are still important and a wouldn't be right cause the man hasn't paid
