[单选题]
A car is negotiating a flat cu 2n8ad;) 2 pwdqhxiza1rve of 1br4is qwd rlw8kgc5j -),hy*radius 50 m with a speed of 20 m/s. The centripetal force provided by frictig)s158 r,b yhjwi qd4ckw *-rlon is $1.2 \times 10^{4} \; N$. What is the mass of the car?
A. $500 \; kg$
B. $1000 \; kg$
C. $1500 \; kg$
D. $2000 \; kg$
