Choose the odd one out.

The answer is D. Z.

The other letters are all consonants. Z is the only vowel.

A consonant is a letter that is not a vowel. Consonants are used to make sounds that are not as smooth as vowel sounds. They are often used to make the sounds at the beginning or end of words.

A vowel is a letter that makes a smooth, continuous sound. Vowels are often used to make the sounds in the middle of words.

In the word “choose,” the letters H, Q, T, and D are all consonants. The letter E is a vowel.