The Canadian Federal Income Tax Is Progressive Because It Has

The Canadian federal income tax is progressive because it has

A) marginal and average rates that rise and are equal at most levels of income.
B) marginal rates that are higher than average rates at most levels of income.
C) average rates that rise but marginal rates that are constant at most levels of income.
D) marginal rates that are lower than average rates at most levels of income.
E) average and marginal rates that are constant at most levels of income.