Read the sentence.
Workers used a machine to compact the dirt before pouring concrete for the new driveway.
The word compact has several meanings. Which meaning shows how the word compact is used in the sentence?
A. verb: to press something together firmly
B. adjective: using or filling only a small amount of space
C. adjective: smaller than is usual for things of the same kind
D. noun: a formal agreement between two or more countries
