What is being referred to in the following definition? a barrier along the open sides of stairways and platforms that prevent falling a. toeboard b. top rail c. guardrail d. banister

C. Gaurd rail.

Explanation:

If you have ever moved up and down a staircase, you should probably have encountered a banister. A staircase typically has a handrail(banister) on its sides where you can put your hand as you go up or down on it. A gaurd rail is similar to a banister in that it is also a barrier along the open sides of stairways and platforms. But while a banister (or handrail) is just to give users something to grasp (maybe for balance or rest), a guard rail majorly helps to prevent falling off the stairway.

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explanation:

that is the right anser