The correct option is D frustrated
Gratified means to give (someone) pleasure or satisfaction. The opposite of gratified is frustrated, or prevent (a plan or attempted action) from progressing, succeeding, or being fulfilled. Hence, Option D is correct. Among the rest of the options, depressed means (of a person) in a state of unhappiness or despondency, discouraged means having lost confidence or enthusiasm; disheartened, distressed means suffering from extreme anxiety, sorrow, or pain. These options do not express this antonym, hence incorrect. o not express this antonym, hence incorrect.