Final answer:
The letter with multiple roles including a consonant, vowel, and part of a vowel team is the letter Y. It can function as a consonant in words like 'you,' as a vowel in 'gym,' and in vowel teams as in 'toy' or 'key'. The correct answer is A) Y.
Step-by-step explanation:
The letter that has five jobs; as a consonant, as a vowel (e, i, i), and part of a vowel team (as in the words toy, key, or buy) is letter Y. This is because Y can behave both as a consonant and a vowel. As a consonant, Y is heard in the word you. However, it can make a vowel sound as in gym or someday, or be part of a vowel team, creating sounds like oy in toy or ey in key. Additionally, when it comes to the letter C, it can be pronounced as a soft 'c' (sounding like [s]) when followed by e, i, or y, or a hard 'c' (sounding like [k]) otherwise.
In summary, the letter that fulfills multiple roles in English phonetics and orthography, acting as a consonant, a vowel, and as part of a vowel team is letter Y. Therefore, the correct option is A) Y.