A Force of 30 N Is Required to Maintain a Spring

Multiple Choice

A force of 30 N is required to maintain a spring stretched from its natural length of 12 cm to a length of 15 cm. How much work is done in stretching the spring from 11 cm to 24 cm?

A) $11.65 \mathrm{~J}$
B) $9.45 \mathrm{~J}$
C) $12.65 \mathrm{~J}$
D) $8.45 \mathrm{~J}$
E) $10.65 \mathrm{~J}$