_______ is a response to pressure exerted by norms that are generally left unstated.

A) Conformity
B) Compliance
C) Obedience
D) Deindividualization

Conformity refers to the act of adjusting one's behavior or attitudes to match those of a group, in response to either real or imagined pressure to do so. Norms can be either explicit or implicit, and conformity is a response to both. Therefore, this option is the best choice as it specifically mentions the presence of unstated norms. Compliance refers to behavior that is influenced by a request, not necessarily a norm. Obedience refers to compliance with explicit directives from an authority figure. Deindividualization refers to the loss of individual identity and the adoption of group norms, which can be a factor in conformity but is not specific to unstated norms.