All consumption bundles along a given indifference curve are equally desirable

The substitution effect indicates that:

A) a decline in money income will cause the consumer to buy more inferior goods and fewer superior goods. B) consumer equilibrium can only be achieved when the consumer is buying substitute goods. C) when the price of a product falls, the lower price will induce the consumer to buy more of that product at the expense of other products. D) when the price of a product falls, a consumer will be able to buy more of it with a specific money income.

In risk characterization, the quantitative component

a. can be presented asa probability b. might include a reference dose (RfD) to communicate non-carcinogenic health risks c. can be based on inferences instead of actual data d. all of the above