Final answer:
The correct term for someone authorized by an employer to perform specific duties or access certain areas on a job site is an 'authorized person'.
Step-by-step explanation:
A person who is authorized by the employer to carry out specific duties or be in designated areas on the job site is known as an authorized person. The correct answer is B. Authorized. This refers to employees who have been granted permission to perform particular tasks or access certain areas within a workplace, often requiring specific training or security clearance.