The one i would choose is A. Becuase the actions of them did cause his death.
Answer:
The search term that would be most helpful in finding this information is World War II AND rescue efforts AND Jewish refugee children
Explanation:
In order to get the best results from an internet search we need to use keywords that are more specific towards the information we want to collect, then the third option is the one that has the most complete combination of topics and does not add anything that could lead to the appearance of useless sources of information.
In the revising stage you should edit and reread the memo to make sure that thats what you wanna say
