Adaface Sample Rust Questions

Review the following two Rust code snippets:

Notice the handle.join().unwrap() line added in snippet two. Pick the correct statements:
            
            A: Snippet one prints 1 to 5 in the spawned thread and 1 to 3 in the main thread always.
            B: Snippet one prints 1 to 3 in the main thread but spawned thread might be closed before it prints all the numbers.
            C: Snippet two prints 1 to 5 in the spawned thread and 1 to 3 in the main thread always. 
            D: Snippet two prints 1 to 3 in the main thread but the spawned thread might be closed before it prints all the numbers.

What does the following Rust code print?

Review the following code and pick the correct statements:

A: The code prints 1223
            B: The code prints 1111
            C: The code prints 1234
            D: The callPassedFunction(passedFunction) on line 7 makes a copy of passedFunction to become the argument of callPassedFunction. The copy gets executed and the x of copy becomes 2, but the original closure still holds a value of 1 for its captured x.
            E: The callPassedFunction(passedFunction) on line 7 makes a copy of passedFunction to become the argument of callPassedFunction. The copy gets executed and x of the copy and the origin both become 2.