Which of the following does Moore's law predict?
a.The power of microprocessor technology doubles and its cost of production falls in half every 18 months.
b.The cost of microprocessors will increase as their power increases.
c.The price of microprocessors continues to fall, while their cost of production increases.
d.The demand for microprocessors continues to rise, while their supply falls.
e.The demand for microprocessor technology falls in half every 18 months.

The Moore's law is an a empirical law that Gordon Moore predicted doing some observations about how the density of the transistors on a integrated circuit was increasing over time.

For example, this law state that if you have an integrated circuit with: 1000 transistors in 1980 then in 1981 and six months later you will have the same integrated circuit with 2000 transistors, and so on..

Jan 1980: 1000 transistors.
Jul 1981: 2000 transistors.
Jan 1983: 4000 transistors.
Jul 1984: 8000 transistors.

And that's the reason because its cost will fall too.