Question

Es bueno separar las botellas de plástico, las latas y las cosas de vidrio para _____.

A. reciclarlos
B. recogerlos
C. reciclarlas
D. separarlas

Answer 1

C.reciclarlas

Answer 2

it's A

Answer 3

Well I don't think the answer is A.. The direct object is: Las botellas de plástico, las latas y las cosas de vidrio. The words are feminine so the pronoun is las.
The pronouns in object direct are: Lo, la, los and las.

Answer 4

@Lucinda13 is right. As far as all the nouns gender is feminine, it is "-las" what has to be used