Directions: Fill in the blank by choosing the most appropriate option.

He has established himself as a tough politician who expects ministers and bureaucrats to turn up for work on time, actually take decisions, and keep files moving, _____________ policies are turned into action.

This is the correct answer. So that is used as a subordinate clause to show purpose or to give an explanation. It is used to show an action producing an intended result or a cause producing an effect. In this sentence it refers to him being tough and expecting politicians and ministers to work hard as a result of which policies get turned into action.