According to the information, it can be inferred that a situational factor that contributes to the conformity standard is the team size (option A).
Conformity is a term that refers to the situation in which the members of a social group change their behavior, opinions and attitudes to fit with the opinions of the group.
According to the above, when working in a group, some of the members can modify their opinion on a particular topic based on different situational factors to fit the general opinion of the other members of the group, among these are:
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