One way to explore a career opportunity is to work as a trainee in your field of interest to gain practical experience. In this experience you would be known as a(n).
A intern
B. mentor
C. tutor
D. volunteer

A. intern

Explanation:

An Intern is an individual or a student or trainee who works, often with very little or no pay, for the purpose of gaining work experience or meet requirements for a qualification most specifically, a university credit, often referred to as industrial attachment.

Hence, one way to explore a career opportunity is to work as a trainee in your field of interest to gain practical experience. In this experience you would be known as an INTERN.

answer; they are called (pebbling);

answer; blank(1); /// the sea; blank (2); / a forest of pines;