Which Statement Best Reflects the Taxation Situation of Big Corporations

Which statement best reflects the taxation situation of big corporations?

A) They are getting smaller to avoid paying as much in taxes.
B) They are paying higher taxes because they operate in more than one country at a time.
C) They are not paying big taxes generally,and pay less than they used to.
D) They are donating substantial portions as tax write-offs to avoid paying higher taxes.