[单选题]
A refrigerator removes heat fromnbb7)z1, gefm the freezing compartmi 6s :n0qcxb3xb y0u;rn 98ndfent at the rate of 20 kJ and ejects 24 kJ intni:nub 86 b;3xf0q09 ycd rnxso a room per cycle. How much work is required in each cycle?
A. $4 \; kJ$
B. $20 \; kJ$
C. $24 \; kJ$
D. $44 \; kJ$
