The correct answer is: C) Heather wants to go to the store with us.
An infinitive is a verbal that can work as 3 different things: as a noun, as an adjective, or as an adverb. It is produced when using "to" + the verb, but this verb can't end in -ed, -ing or similar.
In this case, "to go" is the infinitive.
The answer is C. Appear is a verb and singular verbs normally end in -s. Also the sentence is talking about the conductor, not the pictures.
1. Mom knit socks for me with YELLOW yarn.
2. I heard the QUIET click of needles.
3. I will have WARM feet.
I hope this helps!
