Final answer:
In Holland's theory of vocational choice, the relationship between the types can be described as hierarchical.
Step-by-step explanation:
In Holland's theory of vocational choice, the relationship between the types can be described as hierarchical. According to Holland, individuals can be categorized into one of six personality types: Realistic, Investigative, Artistic, Social, Enterprising, and Conventional. In this theory, the types are arranged in a hierarchical order, with some types being more closely related and complementary to each other, while others are more distant and unrelated.