06 (6 points) Suppose we select four random letters from the English alphabet. These letters will constitute a "word" if either the second or third (or both) letters are a yowels.(Consider a, e, i, o, u to always be vowels. Consider y to be a consonant if it takes place at the start of a word, and a vowel otherwise.) Letters may be repeated. (a) [2 marks] How many words may be formed? (b) [2 marks] How many words may be formed that start with a consonant? (C) [2 marks] Suppose we randomly select 4 letters. What is the probability that it is a word