[单选题]
A refrigerator removes heat from the fre0g tb 8zgj27ngez1/v1sacp 0vuw ( 5blvving compartment at the rate of 20 kJ and ejects 24 kJ into a room per cycle. How much work is requirevcs lw5v 1bvuvp( a0/1d in each cycle?
A. $4 \; kJ$
B. $20 \; kJ$
C. $24 \; kJ$
D. $44 \; kJ$