Typically, all economic activity within a nation is governed by that nation's laws

One of the shortcomings of direct marketing is that the firms cannot easily measure its response

Indicate whether the statement is true or false

Under the current tax structure, income brackets

A) are positively related to both the marginal tax rate and the average tax rate. B) are negatively related to both the marginal tax rate and the average tax rate. C) are positively related to the marginal tax rate, but negatively related to the average tax rate. D) are negatively related to the marginal tax rate, but positively related to the average tax rate.