The language is in Racket. Please answer the question in the screenshot. Write a recursive function named sum that adds up all the elements in a list. For example: (sum '(4 5 0 1)) ---> 10 (sum...

Extracted text: Write a recursive function named sum that adds up all the elements in a list. For example: (sum '(4 5 0 1)) ---> 10 (sum (gen-list1 5)) ---> 15 Do something reasonable if the list is empty.