n Python, 1. Create the function is_vowel. It must use an if statement(s) def is-vowel (v): # v is a letter # return True if v is a vowel Notes: solve the problem using ONLY selection statements (e.g.if, elif, else) with boolean expressions. You can use the functions lower( or upper () in your solution to help manage all the possibilities. Both lower and upper are functions on the string type. When a function belongs to a type we call them methods. print ('A lower), 'a' -upperO) 2. Create a function is a vowe1. It must use the in operator to solve the same problem: def is a vowel (V) # v is a letter # return True if v is a vowel 3. Create a function count_vowels that takes a string and returns the number of vowels in that string. Your function should use one of the functions you created above to determine if a letter is a vowel