Question

read the sentence.
the garden was enclosed by tall stone walls, which blocked out the noise and bustle of the city.
which statement best explains how the underlined clause conveys meaning?
it describes the effect of the tall stone walls.
it explains when the garden was enclosed by walls.
it modifies the subject and describes the garden.
it modifies the verb and describes the enclosure.

Explanation:

The underlined clause "which blocked out the noise and bustle of the city" is a relative clause. Relative clauses can modify nouns (in this case, "stone walls"). The function here is to describe the effect of the stone walls (blocking noise and bustle).

Answer:

It describes the effect of the tall stone walls.