Under the United Nations Convention on Contracts for the International Sale of Goods(CISG), which of the following is true regarding the requirement of consideration in a contract?
A) Consideration is not applicable under the CISG.
B) Consideration is not required for a contract to be enforceable.
C) Consideration must be present, and the value of the reciprocal promises must be equal.
D) Consideration must be present, but the value of the reciprocal promises is not considered.
