The ratio of the sides of a triangular shaped park is 3 : 4 : 5 and the perimeter of the park is 170 m. What is the perpendicular distance in meters from the vertex, opposite to the largest side of the park?

A

$$2400\sqrt{84}$$

B

$$2400\sqrt{42}$$

C

$$4800\sqrt{42}$$

D

$$2400\sqrt{21}$$