Answer:
d. The payments must be in cash and must be received by the spouse (or former spouse).
Explanation:
There was not an obligation that alimony should be paid only in cash, It could be made by check, bank transfer, deposit, or another financial transaction mean. However, it is noted that it could be paid in cash, but preferably, if the couple does not have an amicable relationship post-marriage, some kind of receipt should be received to prove that transaction.