Atender, working on the same thing, its hard
Para el almuerzo mi amigo come una hamburguesa con yogur.
Not hating on anyone that has hamburgers and yogurt, but most people don't do that.
You would use B when talking about your report.
A direct object pronoun replaces a direct object, that is a noun that directly receives the action of a verb in a sentence. Moreover, direct object pronouns in Spanish agree in number and gender with the nouns they replace. In the sentence:
<em>Compro </em><em>la gasolina </em><em>en la estación de servicio</em>
<em>La gasolina</em> is the direct object because it receives the action comprar. Since <em>la gasolina </em>stands for the third person singular in feminine form, we need to use the direct object pronoun that matches this person, that is, la. Therefore, the new sentence is:
<em>La </em><em>compro en la estación de servicio</em>
