Choose the best option that best completes the gap(s)
The delegates were given_____
- a two hour break
-
a two-hour break
- a two-hours break
- a two hours break
The correct answer is: B
Explanation
When the article 'a' is used to introduce a time session it implies that you are making a singular form of what is actually plural. Generally, one should hyphenate two or more words when they come before a noun they modify and act as a single idea.
There is an explanation video available .