Changes in monetary policy have the greatest effect on

a. income tax rates.
b. service fees and expenses.
c. demand for investments.
d. government spending.

The correct answer is letter C.

Monetary policies change the interest-rates which affets the investments. When the inflation is too high and the expectations around it change, the interest-rates are affected and it directly changes the demand for investments.

its d i know cause i've been googling it

the language of nature was a manifestation from god as he said "let there be light" and there was light the world began to assume visible, comprehensible form.

what ever we know now think of the old vision of creation we can be sure that with out the speaking of word -without language- we would have no science today with its striking power to illuminate the world.