Answer:
A. custodian
Explanation:
A white collar worker is a person who does non-routine work in an administrative or professional position, and does not perform manual labor. A higher level of training is typically demanded for a white collar position; a college degree is a common requirement. This group of workers tends to earn a higher wage than manual laborers, and is more likely to be paid a salary than an hourly wage. The dress code associated with a white collar position may be somewhat higher than for other positions.
