Final answer:
The theory that suggests careers should be matched with personality traits is the Holland theory, which integrates with the Holland RIASEC model.
Step-by-step explanation:
The statement that careers can and should be chosen based on your personality traits refers to the Holland theory. This theory is also known as the Holland Code or RIASEC model, which identifies six personality types and suggests that people are happiest in work environments that match their personality. These six types are Realistic, Investigative, Artistic, Social, Enterprising, and Conventional. John Holland proposed that satisfaction and the likelihood of success in a career are greatly increased if there is a good fit between the person's personality traits and their work environment.