I would say answer A because none of the other responses make sense with the context given. The father only picked out the parts in life he wanted to live by and that he believed in. Those things were important to him if he chose to live by them, hence him “knowing the important things in life”.
1. Nobody wants to pay for a newspaper anymore when they have everything on their phones/internet for free. Sites such as aol offer free news at the click of a button so why would anyone want to pay for a newspaper or a newspaper subscription
2. With advancements in technology, such as the ability of newscasters to live stream things, information has become available much faster and it is much easier to get all your news listening to it on the TV with stimulating images as oppose to having to flip through pages and pages of a paper trying to find a good story.
The option that identifies the context clue that would be most helpful in determining the meaning of the underlined word is remarkable no so much for...as for their senseless brutality, here we have a contrast with the use of the word as between the descriptions, senseless brutality is a negative description and since we are talking about the use of comparison the meaning of munificence has to be positive according to the context.
In fact, munificence is a positive word it is a synonym of generosity, in this way the expression remarkable no so much for...as for their senseless brutality is the clue that helps you understand the meaning of the word.
The other options are not correct because they don't have a direct connection with the specific word we want to understand.