Which word contains a vowel team?

The correct choice contains a vowel team, which is a combination of two vowels that work together to create a single sound. In this case, the word "break" includes the vowel team "ea," which produces the long "a" sound, as heard in "break."

In contrast, the other words do not contain vowel teams. "Click" consists of a consonant cluster followed by a short vowel sound, "ask" contains a single short vowel sound without any team, and "buckle" has the vowel sounds "u" and "e" distinctively pronounced rather than in a team. Thus, "break" is the only option that features a vowel team, making it the correct choice.