need help im on an assingment and im confused also please dont lie about the answer

An organism which produces its food by photosynthesis:

must be placed in the Plantae Kingdom
may be placed in the Plantae Kingdom
must be placed in the Animalia Kingdom
may be placed the in the Animalia Kingdom

Relax

Respuesta :

must be placed in the plantae kingdom

only plants use photosynthesis

Answer:

may be placed in the plantae kingdom

Explanation:

it's not C or D because animals don'r produce photosynthesis. And some plants don't. So it has to be B.