Less vs Fewer

Cynics charge that Major League Baseball lobbied for stadiums with fewer seats to reduce supply and increase ticket prices.

A. lobbied for stadiums with fewer seats to reduce supply and increase ticket prices.
B. lobbied for stadiums with less seats to reduce supply and increase ticket prices.
C. lobbied for stadiums that had fewer seats to reduce supply and increase ticket prices.
D. lobbied for stadiums that had less seats to reduce supply and increase ticket prices.
E. lobbied for stadiums that had less seats as a means of reducing supply so they could increase ticket prices.

Explanation:
Less = not countable, Fewer = Countable...eliminate B/D/E
C. Wordier
A. holds