effective tax rate

问题如下：

Q. Marcy’s effective tax rate was lowest in:

选项：

A.Year 1.

B.Year 2.

C.Year 3.

解释：

C is correct. The effective tax rate of 24.5 percent (USD42,986/USD175,284) in Year 3 was lower than the effective tax rates in Year 1 and Year 2. A is incorrect because its effective tax rate of 30.1 percent is higher than that of Year 3. B is incorrect because its effective tax rate of 26.1 percent is higher than that of Year 3.