Correct Answer: Non-excludable

Solution : The correct answer is (d) - non-excludable.

The characteristics of human capital are as follows:

a) Transferable: Human capital can be transferred from one individual to another through learning, training, and education. It is not tied to a specific individual and can be shared or acquired by others.

b) Non-depletable: Human capital does not get depleted or diminished with use. In fact, it tends to increase and appreciate over time with continuous learning, experience, and skill development.

c) Non-rivalrous: Human capital is non-rivalrous, meaning that one person's use or possession of human capital does not diminish or reduce its availability for others. Multiple individuals can possess and benefit from the same type of human capital simultaneously.

d) Non-excludable: This is the characteristic that is NOT applicable to human capital. Human capital is excludable, meaning it can be exclusive to an individual or a group. Individuals can possess certain skills, knowledge, or abilities that are not accessible or known to others.