Answer:
A). Intelligence.
Explanation:
'Human Capital Theory' is the conjecture that highlights the concept that the finances consumed on teaching and educating the youth will promote the growth and development of the economy by decreasing the level of poverty. It also promotes that this would significantly enhance the professional skills among them and increase the participation of youth in the workforce which would further assist in improving the GDP and boost economy's growth. The thing it excludes is 'intelligence' as it lays more emphasis on skills and contribution in labor-force. Thus, option A is the correct answer.