Margaret Atwood

In line 13, "they" refers to

a. material possessions.

c. pieces of property.

b. spirits of nature.

d. hills and cliffs.

Based on the choices, I believed you are referring to the famous poem of the Canadian poet; Margaret Atwood entitled "The Moment". The poem is about the relationship between humankind and the world we live in. In the 13th line of the poem, it says "No, they whisper. You own nothing." Margaret is referring to the spirits of nature.