Only some lockers contain laboratory coats. Which sentence identifies that subset correctly?
The lockers that contain laboratory coats are reserved.✓الإجابة الصحيحة
The lockers, that contain laboratory coats, are reserved.
Lockers which contain coats, are reserved.
The lockers, which contain laboratory coats are reserved.
الشرح
The clause that contain laboratory coats identifies which lockers are reserved, so it is defining and has no commas. Adding commas is the closest distractor because it would present the information as extra and imply that the lockers were already identified.