The dog presented with a tray with a blue block on it underneath the block is a treat the animal moves the block and gets the treat. which is the best inference to make? a the dog moves the block because he wants the treat. b this is a relatively simple test for such an intelligent animal. c dogs can be trained to associate treats with the color blue. d this is not a very impressive trick.

i would say the answer is erm c but if you dont agree im so sorry

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."