Answer:
D. Smith is likely to be a Keynesian economist and Jones is likely to be a classical economist
Explanation:
The Keynesian approach was proposed by John Keynes in the twentieth century in response to the mainstrean theory of the classics.
Classical economists preach that the economy adjusts itself, so that the government should not interfere with the labor market, that is, the hands-off view, like Jones.
On the contrary, Keynesian economists believe that the government has the power and influence to alter the reality of the labor market in situations of structural unemployment. This is what Smith advocates in this exercise. Therefore, alternative D is correct.