Which of the following is a complex sentence? A-It’s good to reduce, reuse and recycle. B-Pollution is bad for the environment. C-Even though it takes more time, we should recycle. D- I would never throw trash on the ground.

C. Even though it takes more time, we should recycle.

Explanation:

This sentence contains a subordinate clause or clauses. A subordinate clause is a clause, typically introduced by a conjunction, that forms part of and is dependent on a main clause. The "it takes more time" in "Even though it takes more time" is a subordinate clause

b

explanation:

the correct answer can either be a or b because it could be both but you should probally choose b