'This vowel appears most often in the 2-letter postal abbreviations of the 50 states'
A
TAKE A LETTER: This vowel appears most often in the 2-letter postal abbreviations of the 50 states
This vowel appears most often in the 2-letter postal abbreviations of the 50 states
This vowel appears most often in the 2-letter postal abbreviations of the 50 states
TAKE A LETTER
A
TAKE A LETTER