Multiple choice:

On December, 31 2018, Buthainah Corp. owned a patent. The carrying amount of the patent (following the amortization journal entry on December 31, 2018) is 100,000/ The recoverable amount of the patent is determined to be $70,000. Which of the following is true regarding the journal entry that Buthainah Corp. should record on December 31, 2018.

a. Debit to loss on impairment of $30,000.

b. credit to patent of $30,000.

c. debit to goodwill of $30,000.

d. both A and B are correct