[单选题]
A machine gun, of mass 0w.o,1 i )n) yxbgtmnr35.0 kg,nqwh6q l4q58 (nfzva 6 fires 50.0-gram bullets, with a muzzle velocity of 750 m/nv 5w 6 hz46a8flqq(nqs, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?
A. $94.0 \; N$
B. $188 \; N$
C. $219 \; N$
D. $438 \; N$
