Final answer:
The connotative meaning of "juvenile" in the provided sentence denotes immaturity. It reflects Julia's viewpoint that fraternity behavior lacks the seriousness she seeks in a dating partner. The correct answer is option d) immature.
Step-by-step explanation:
The student has asked about the connotative meaning of the word "juvenile" as used in the sentence provided. In the context of the sentence, the word "juvenile" carries a negative connotation and suggests behavior that is immature.
Therefore, the correct answer is B) Immature. Julia's use of the word in a disdainful sense implies that she perceives fraternity behaviors as not just young, but lacking maturity and seriousness. It is not just reflective of young age (Youthful), being uncorrupted (Unspoiled), or resembling a child (Childlike), but specifically of a maturity level that Julia finds unsuitable for her dating preferences.