A Is Indebted to ABC Corporation in the Amount of ₱100M

A is indebted to ABC Corporation in the amount of ₱100M. Despite efforts to collect from A, the latter failed to pay due to business reverses as he has no more assets. In order to maintain a more accurate inventory of the worth of its current assets, ABC Corp. was forced to write-off A's obligation. One (1) year later, A won the lotto draw in the US in the amount of $100M. Learning of the good luck of A, it demanded for payment, but A refused to pay contending that his obligation was extinguished when it was written-off. Is A correct?

A) A is correct because write-off is a mode of extinguishing an obligation.
B) A is correct because write-off is a compromise of liability.
C) A is correct because write-off is a condonation of an obligation.
D) A is not correct because in making the write-off, only the creditor takes action by removing the uncollectible account from its books even without the approval or participation of the debtor, hence, there is no extinguishment of the obligation. (Reyna, et al. v. COA, G.R. No. 167219, February 8, 2011)