People can debate the aesthetic merits of these overwrought, disquieting, sometimes gruesome works of art, but no one can dispute their creators' mastery of the paintbrush as a blunt instrument

A. but no one can dispute their creators' mastery of the paintbrush as a blunt
instrument.

B. but none can dispute their creators' mastery of the paintbrush as a blunt instrument.

C.but not a one can dispute their creators' mastery of the paintbrush as a blunt instrument

D. but no person can dispute their creators' mastery of the paintbrush as a blunt
instrument.

E. but none can dispute to their creators' mastery of the paintbrush as a blunt
instrument.

A or B??