¿De qué manera practico la justicia?

1. A. La

2. D. Me

Explanation:

A direct object is a noun or a pronoun receiving the action in a sentence (it answers the question "what") and an indirect object is a noun or pronoun that receives the direct object or that is affected by it (it answers the questions "to/for whom" or "to/for what").

In sentence number one, the direct object is “la basura.” This noun is a female noun, so, the direct object pronoun that can replace “la basura” is “la” (which is also a female singular noun). Here's the version of the sentence with the direct object pronoun:

Los voluntarios de la comunidad la tiran o reciclan para el supervisor del comedor comunitario.

In sentence number two, the indirect object is “mí” (“me” in English), which is a singular first-person pronoun. “Me” is also a singular first-person pronoun so it is the only one that can replace the indirect object in the sentence. Here's the version of the sentence with the indirect object pronoun:

Los voluntarios de la comunidad me tiran o reciclan la basura.