Assuming that you're referring to the Flvs english 1, the one that you need to think bout throughout unit 1 is : Future possibilities. Most of the topic in this unit talk about future possibilities
Versus what exactly may I ask?
The word the best fits the blank above is COMMITMENT. This is based on the Triarchic Theory of Love by Robert J. Sternberg. According to him, the purpose of maintaining the relationship despite having problems based on the cognitive judgment of the relationship is called commitment. Being committed means you stay no matter what any obstacle or external variable may come.
The correct answer for 1 is oversimplification/hasty generalization
It is hastily generalized that just because Victoria is a girl and likes dancing, that all girls like dancing.
The correct answer for 2 should be ad hominem
He is not providing any argument to counter their statement, he is attacking them that they don't have heads.