A local engineering firm here in Stillwater does residential development planning for the City of Stillwater. Their primary services are street design, storm water run-off, and municipal water/sewage system design. Their taxable income last year was $250,000 primarily from the North Country Club Drive project. This year they expect to increase their taxable income by an additional $175,000 from the Western Road project and expansion in the Berry Hill housing addition. Based on the information provided determine the following: Answer questions 1 - 4 below. What is the effective tax rate on all of last year's taxable income?
A. 38.25%
B. 32.30%
C. 27.15%
D. 18,60%