What do sociologists call the observable individual attributes, such as physical appearance, mobility, strength, coordination, and mental capacity, that are used to assign people to age categories?

a. aging

b. chronological age

c. cohort

d. functional age

Functional age are used to assign people to age categories.

Option D

Explanation:

It is one's age as determined through the behavior displayed by the age-norm standards. It differs with chronological age in that it examines the chronological age, behavior, mental capacity and compares it with different age groups. Chronological age is only interested in the number of years one has been alive.

In a child, functional age is measured based on the developmental level the child has attained and compared with the normal developmental level displayed by people in his/her chronological age. For example, some baby may start eating solids as early as two months while some start at 4 months or later.