Questão número 637616

The relative pronoun WHICH in “which is very poisonous and can cause brain damage in children” (paragraph 5), the object pronoun THEM in “and burning them is slowly harming the atmosphere” (paragraph 6), and the pronoun THEY in “so that they can be used again” (paragraph 7), refer in the text, respectively, to:

• A.

  lead / coal, oil and gas / used objects and materials

• B.

  a lot of petrol / coal, oil and gas / objects and materials

• C.

  lead / most of the energy we use today / used objects and materials

• D.

  the greenhouse effect / most of the energy we use / recycling objects and materials

• E.

  a lot of petrol contains lead / energy, coal, oil and gas / processing objects and materials