Find the indirect object in the following sentence. Trevor sent his mother the postcard. A. Postcard B. His C. Trevor D. Mother

The correct answer should be 'his mother', but since those two together aren't an option, you should circle D, 'mother'. 'Postcard' is the direct object, 'his' is a pronoun/determiner, 'Trevor' is a subject, so the only option left is the final option.