In recent studies of motivation and personal identity, researchers have explored how social identity theory influences an individual's self-perception and motivation. This theory suggests that individuals derive part of their self-concept from their membership in social groups. For instance, someone identifying strongly with a sports team may gain motivation to excel in physical activities or assert dominance in these social contexts.

Additionally, intrinsic motivation, which arises from within an individual, has been shown to be affected by external validation from social groups. Consider a scenario where an individual, Alex, has a robust identity tied to being a scholar. Alex is often motivated to achieve academic excellence to uphold their reputation within a close-knit academic community.

However, during a crucial examination period, Alex receives conflicting feedback from peers regarding his study approach, leading to self-doubt. This situation gives rise to questions about the balance of external influences and intrinsic values in shaping motivation and identity.

Based on your understanding of motivation and identity, especially regarding social identity theory, which of the following best describes the role of social validation in Alex's motivation?