- (A) Size influences conformity only up to a certain level. This statement is correct. Research shows that as the group size increases, conformity tends to increase, but only up to a certain point. After reaching a group size of 4-5 people, conformity levels off, and adding more people has a diminishing effect on conformity.
- (B) Size always influences conformity. This statement is incorrect. While size does influence conformity to some extent, it is not always a determining factor. Other factors such as unanimity, status, and the nature of the task also play significant roles in influencing conformity.
- (C) Group unanimity influences conformity. This statement is correct. When everyone in the group agrees (unanimity), the pressure to conform is stronger. However, if even one person disagrees with the group, it significantly reduces the pressure to conform.
- (D) Status does not have any influence on conformity. This statement is incorrect. In fact, status does influence conformity. People are more likely to conform to individuals with higher status or perceived expertise.
Thus, the correct answer is:
\[
\boxed{A), C)}
\]