What is the change in internal energy of a system if the system evolves $280$cal of heat and has $1\mathrm{.}25kJ$ of work done on it$?$

A$)-79\mathrm{.}6J$

B$)79\mathrm{.}6J$

C$)-281\mathrm{.}3J$

D$)281\mathrm{.}3J$

E$)1169\mathrm{.}1J$