Which of the following is a part of human capital?
i. Doctor
ii. Engineer
iii. Construction worker
iv. Chartered accountant

i, ii, iv

The correct answer is option 3: i, ii, iv

Explanation: Human capital refers to the knowledge, skills, and expertise that individuals acquire through education, training, and experience. Doctors, engineers, and chartered accountants all possess specialized skills and knowledge, making them part of human capital.

A construction worker  on the other hand, lacks specialized skills and formal training, so they are generally not considered part of human capital in the same sense as the others.