单项选择题

A.(直辖处当月专职单收费津贴总和+直辖处当月短险收费津贴总和)×6%
B.(直辖处当月专职单收费津贴总和+直辖处当月短险收费津贴总和)×8%
C.(直辖处当月专职单收费津贴总和+直辖处当月短险收费津贴总和)×10%
D.(直辖处当月专职单收费津贴总和+直辖处当月短险收费津贴总和)×12%