What does "conformity" refer to?

The term "conformity" refers to the act of becoming similar or identical to a standard, group, or norm. This typically involves adjusting one's behaviors, beliefs, or attitudes to align with those of others. Conformity is often driven by a desire for acceptance within a group or the influence of societal norms. In this context, option A accurately captures the essence of conformity, as it emphasizes the transformation or alignment of an individual's characteristics with those of others.

The other options relate to different concepts altogether: being loud pertains to volume or intensity of sound, a long and harsh speech describes a specific manner of communicating that can be critical or scolding, and usefulness refers to the practical value or utility of something. These definitions do not convey the meaning of conformity, thereby highlighting why option A is the most appropriate choice.