which of the following statements is/are correct:

A. A promise generally cannot be enforced by a party to the promise if that party has not given consideration of it.

B.Consideration means that the parties to the contract did not act unfairly or unconscionably.

C.Consideration means that each party has given something in return for the promise of the other party.

D.Both parties must offer equal consideration.

a. All of A B C and D

b. B and C

c. Only A and B

d. Only A and C

e. Only A

f. Only C