[单选题]
A refrigerator removes(6xr f3l0 j1qjdlmv;i ; /zfpk heat from ;l/)ylb7 nr pz h 9owb:n;u,x lw*mpz6the freezing compartment at the rate of 20 kJ and ejects 24 kJ into a room per cycle. How much work is required in e7ly6 )nz zlu9 lmpnwwo:x,;hbr; p*/bach cycle?
A. $4 \; kJ$
B. $20 \; kJ$
C. $24 \; kJ$
D. $44 \; kJ$
