A Fluid in an Insulated,flexible Bottle Is Heated by a High

Multiple Choice

A fluid in an insulated,flexible bottle is heated by a high resistance wire and expands.If $9.0 \mathrm {~kJ}$ of thermal energy is transferred through heating to the system and it - $5.0 \mathrm {~kJ}$ of work is done on it,how much does the internal (thermal) energy of the fluid change?

A) 4.0 kJ
B) 14 kJ
C) -4.0 kJ
D) 45 kJ