A warm cozy house representing security and family values is an example of . foreshadowing
symbolism
flashback

A Pronoun-Antecedent agreement refers to the replacement of a noun by a pronoun in a sentence, this replacement must be accordingly to the gender and type, for example If in the beginning of the sentence the pronoun is Nicolas later when we use a pronoun to replace the noun it should be masculine and singular as well.

In this case the sentence that corrects an error in pronoun-antecedent agreement is “By fall, Luz was able to compete in a real field meet with Luz’s team members.”