Identify the sources of Human Capital Formation and choose the correct alternative to fill in the blanks:

Human Capital Formation refers to the development of skills, knowledge, and health in individuals to improve productivity. Key sources include: Expenditure on Health: Ensures a healthy workforce capable of contributing effectively to the economy.
Expenditure on Migration: Helps in reallocating skilled labor to areas with better opportunities, optimizing productivity.
If the marginal cost of a firm is given as the function of output, \( C'(Q) = 2e^{0.2Q} \), and if the fixed cost is 75, find the total cost function.
The present-day rapid industrial growth in China can be traced back to the economic reforms introduced in 1978, where ________ .
(i) Initially reforms were initiated in agriculture, foreign trade, and investment sectors
(ii) The policy of dual pricing was adopted
(iii) The Government revoked the policy of Special Economic Zones

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?