56.

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

Item F/H: needed to perform the work is the attributive of the previous noun the safety gear, and a single comma cannot be used in the middle. Both F/H are wrong.

Item J: It does to survive is an attributive clause omitting that (as an object in the clause), and the complete sentence is the safety gear needed to perform the work (that) it does to survive, so before it Cannot have a comma, J is wrong.