Gerund as it functions as a subject of your sentence as well.
#2 and #4 for sure, I'm not sure about the others. Probably not the first one.
I'd say 1.A
And 2.C are the correct answers
Answer:
-She considers the physical characteristics of her guests when thinking about the Tuppers.
- She blames some of her problems on Elaine, whom she wants to use to gain access to Oliver Farnsworth.
Explanation: