C# How Do I Search Through A List To Find A Particular Variable's Value?

Question

I have a list containing instances of a class containing several variables, one of which is a boolean. I need to write an algorithm that will search through every class instance in that list and find the item(class instance) where that boolean is set to "true."
Here's the code I've tried so far:
            bool ActiveQuestion = Questions.Find(item => Questions.ThisIsActiveQuestion == true);
In this line of code, the list is named "Questions," the class is named "Question" and the boolean within that class is named "ThisIsActiveQuestion." To re-state what I want to do, I want to go through the list and find the class
in which that boolean is set to "true."

Answer 1

Something like this
List<Question> someList = new List<Question>();
IEnumerable<Question> query = from q in someList where q.IsTrue select q;
public class Question
public bool IsTrue;
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