Concept:Aptitude tests measure a person’s potential and are mainly used to help choose a career.Explanation:Aptitude means "fitted for" and shows what a person can learn or do. It helps students discover their own abilities and interests. Career counselors use these tests to guide students toward suitable occupations. Aptitude tests also help in selecting candidates for courses and training. The main purpose of such tests is to assist with vocational guidance — choosing, preparing for, and progressing in a career.Answer:D. Vocational guidance