[单选题]
A machine gun, of mamep (40a3gswdk14 9xc*oxwvel 8a.w zss- zmmjr+8h;, h m*omzu 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. Whm; h ,rmzj*m-muz o+h8at is the average force exerted on the machine gun mount?
A. $94.0 \; N$
B. $188 \; N$
C. $219 \; N$
D. $438 \; N$