Using mirrors in a small room is a _ because mirrors can make a space seem bigger and brighter than it really is. Is it the second one, or the third one, and why!?

Using mirrors in a small room is a clever trick because mirrors can make a space seem bigger and brighter than it really is.

Explanation:

Because it makes the most sense and it doesn't say what the method would be for so it would be an incomplete thought.

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."

the answer is c. hope this