Which of the following statement (s) is/are true?

Physical capital is intangible and can be easily sold in the market like any other commodity. Human capital is tangible. Human capital is not sold in the market; only the services of the human capital are sold. All of the above

Human capital is not sold in the market; only the services of the human capital are sold.

Physical capital is tangible and can be easily sold in the market like any other commodity. Human capital is intangible; it is endogenously built in the body and mind of its owner. Human capital is not sold in the market; only the services of the human capital are sold and, hence, there arises the necessity of the owner of the human capital to be present in the place of production. The physical capital is separable from its owner, whereas, human capital is inseparable from its owner.