[单选题]
A machine gun, of mass 35.0 kg, fires 55hwuij.ytvav9 6 rq:20.0-gram bu f7bqwd :d(p9i iq(2qxllets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minq:x9 iq(fpddw7b qi (2ute. What is the average force exerted on the machine gun mount?
A. $94.0 \; N$
B. $188 \; N$
C. $219 \; N$
D. $438 \; N$
