Final answer:
The Reimer case was intriguing due to the involvement of identical twin boys, allowing the study of the impact of nurture versus nature on gender identity.
Step-by-step explanation:
The key contributor that made the Reimer case so interesting was c. the fact that there were identical twin boys involved. The case of David Reimer and his twin brother, Brian, is crucial to understanding the complexities of gender identity. The twins' identical genetics provided a unique opportunity for researchers to evaluate the influence of upbringing and socialization on gender identity. When a botched circumcision led to Bruce being reassigned as Brenda, psychologist Dr. John Money saw an opportunity to test his theory of gender neutrality.
The case became a longitudinal study contrasting the development of Brenda (who later reassumed his identity as David) and his identical twin brother. This tragic story later highlighted the limited role social circumstances may play in forming gender identity, shifting the scientific perspective toward a more nuanced understanding of the interplay between biology and socialization.