Answer: CRequired takes "to" to suggest some action.
required to do something is the correct form.
The nonessential phrase separated by commas after required could cloud the judgement on concision.
Striking out that would help getting to correct answer.
Quote:
All parents who wish to hold a leadership position in the Boy Scouts are required, regardless of whether or not their child is a member, for taking youth protection training.
A. for taking youth protection training
for taking is not the right usage to go with required.
Eliminate A
Quote:
B. for making sure youth protection training is taken
It unnecessarily turns the sentence into passive, which is not required. for making is not the right usage.
Eliminate B
Quote:
C. to take youth protection training
Seems right in place and makes sense.
Keep C.
Quote:
D. to have taken of the youth protection training
to takes the simple present. Perfect tense usage is incorrect here.
Eliminate D
Quote:
E. of taking youth protection training
of taking is not the right usage to go with required.