I think it is C, because if I'm right present principal is something that is happening presently? If so, C would be the answer because they "are doing" the exercises right now in context.
I will help you but send a copy of the story first
Answer:
that hit an iceberg and sank, killing most of its passengers. After this ominous ... The sinking of the Titanic had a lasting impact on disaster preparedness. There is no panic, many people feel the impact, they blew it off, no concer A Harrisburg woman survived the sinking of the Titanic in 1912. ... of the 2,100 persons on board the mammoth White Star liner Titanic,
Explanation:
The resolution is bolded in the fable above because at the end of the fable it teaches you a moral or lesson in the story.
I believe the pronoun "what" is already properly placed.
