Consider the following deductions, which reduce the amount of income tax an individual must pay. Can they be justified on the basis of the ability-to-pay principle? a. Amount of charitable...

Consider the following deductions, which reduce the amount

of income tax an individual must pay. Can they be justified on

the basis of the ability-to-pay principle?

a. Amount of charitable contributions

b. Amount of interest paid on a mortgage

c. Number of dependent children