Which component of aggregate demand is involved in the wealth effect caused by a price level change?

The general rule for benefit maximization suggests that in personal equilibrium:

A) the ratio of total benefits to price should be identical across all goods. B) the ratio of total benefits to income should be identical across all goods. C) the ratio of marginal benefits to price should be identical across all goods. D) the ratio of marginal benefits to income should be identical across all goods.

The theory that quantity supplied and price are positively related, other things constant, is referred to as the law of:

A. demand. B. supply. C. profit maximization. D. opportunity cost.