Fill in the blank with the correct option:

John is __________ M.A. in English

an

The correct answer is Option (1) - an

The article "an" is used before words that start with a vowel sound. Although "M.A." begins with the consonant letter "M", it is pronounced as "em", which starts with a vowel sound. Therefore, "an" is the correct article.

"John is an M.A. in English."