This is secured to a guardrail’s vertical posts and must be installed when walls aren’t at least 21 inches high and withstand at least 150 lbs. of force.

Answer choices are:

A. Top Rail

B. Mid Rail

C. Toe Board

Correct answer choice is:

B. Mid Rail

Explanation:

If the walls are not at least 21 inches above, a mid-rail should be established, and it should confront at least 150 lbs of force. Mid-rail is a rail almost midway within the guardrail and platform, utilized when needed, and adjusted to the uprights built along the unfolded sides and edges of platforms.

i believe it is a. a segment : )

c. shubert i think : )