Which of the following is a symptom of social interaction difficulties in individuals with autism?

The choice indicating "Failure to share achievements with others" accurately reflects a symptom commonly observed in individuals with autism, highlighting their challenges with social interaction. Individuals on the autism spectrum may struggle to recognize the importance of sharing personal milestones and successes with peers, which is often integral to developing social bonds and relationships. This difficulty can stem from challenges in understanding social norms and the emotions of others, making it harder for them to engage in reciprocal interactions that typically enhance social connections.

In contrast, the other options depict positive social skills or behaviors. Forming deep friendships, eagerness to collaborate, and consistent use of eye contact are generally associated with effective social interaction and communication. These qualities are not typical in individuals experiencing significant social interaction difficulties, thus underscoring the relevance of the correct symptom regarding their social engagement challenges.