What Was the "Venality of Office" in the French State

What was the "venality of office" in the French state?

A) the tendency to tax high governmental offices more heavily
B) the exercise of seeking out revenue from new sources in other countries
C) the practice of selling high offices, such as judgeships, in the parlements
D) the introduction of women's right to own property and inherit offices
E) the movement to allow commoners to hold lower-level offices in the government