Answer:
The correct option is personal appearance.
Step-by-step explanation:
In psychology, the term first impression refers to the event in which one person has his or her first encounter with either another person or with a thing, forming, as a result, a mental image of such new person or thing.
Such first impressions are often based on a range of factors which include: gender, age, race, physical appearance, language, accent, as well as posture, to name a few.
Bearing the explained above, it could be said that first impressions are often based on personal appearance.