A loss from the sale or exchange of property will be disallowed in which of the following situations?

a. A transaction between a partnership and a partner who owns 40 percent of the partnership capital
b. A transaction between a partnership and a partner who has a 40 percent profit interest in the partnership
c. A transaction between two partnerships owned 40 percent by the same partners
d. A transaction between two partners with investments in the same partnership
e. None of the above