If you want to change a word ending in -dor to feminine form, you add an a at the end. Your answer is D.
Choice A is correct.
Adjectives in English don’t change their endings. E.g The fast, red ball/The fast, red balls
Adjectives in Spanish change their endings. E.g El muchacho alto/ el muchacha alta
Answer:
yo creo que el RETRATO DOCUMENTAL ojala te ayude UuU