7. If A is the total capital of the partnership before admission of a new partner, B is the total capital of the partnership after the investment of a new partner, C is the amount of the new partners investment, and D is the amount of capital credit to the new partner, then there is:

a. A bonus to the new partner if B = A + C and D < C.

b. A bonus to the old partner if B = A + C and D > C.

c. Both a and b are correct

d. Both a and b are incorrect.