Two cars are moving with speeds $$v1$$ and $$v2$$ towards a crossing along two roads. If their distance from the crossing be 40 m and 50 m at an instant of time, then they do not collide, if their speeds are such that

A

$$ v_1:v_2 \neq 4:5 $$

B

$$ v_1:v_2 \neq 5:4 $$

C

$$ v_1:v_2=16:25 $$

D

$$ v_1:v_2 = 25:16 $$