1.) What are the pros and cons of languages that distinguish between capital and lowercase lettersin user-defined names?

2.)Suppose that the equal_lists function (page 49 of Sebesta) is called with the lists (A (B) (C)) and(A (B) (C)) as the arguments.

(a) What will be the return value of the function?

(b)Draw the recursion tree as we did in class. How many total calls of equal_lists will be performed, including the original call and all recursive call