Which of the Following, If True, Would Weaken the Case

Which of the following, if True, would weaken the case for Sam and Nina owning the business in a partnership?

A) Sam and Nina have different personalities.
B) Sam and Nina have known each other for many years.
C) Sam and Nina have conflicting ideas about what would make a dry-cleaning business succeed.
D) Nina is experienced in finance but not in equipment repair.
E) Sam is experienced in dry-cleaning but not skilled as an administrator.