Explanation:

- The concept of "culture construct" relates to the idea that culture is not an innate trait but a system built or constructed by society.

- Let’s go through the options:

- Marett: He was a British anthropologist known for work on animism, not directly for culture construct.

- Bidney: He discussed culture, but focused more on philosophical aspects.

- Malinowski: Famous for functionalism and ethnography, but not specifically for coining "culture construct."

- Linton (): He emphasized culture as a construct of learned behavior and socially shared knowledge. Linton is directly known for contributing to this concept.

- Correct Answer: Option 4 - Linton.