请选择ABCD;~:h0p*U)kA car travels at a rate of 50 miles per hour.How long will it take to travel 300 miles?*x(D5~0S:o2I'P'f.?
A.250hours*x(D5~0S:o2I'P'f.?
B.6hours*x(D5~0S:o2I'P'f.?
C.1/6hours*x(D5~0S:o2I'P'f.?
D.15000hours*x(D5~0S:o2I'P'f.?