The base Task class does not have a Result property. That property is defined on Task() returns an IEnumerable You are then calling the overload of ContinueWhenAll that takes an array of Task objects, so you will not be able to use methods on Task.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.