The temperature last night was -5^{\circ} \mathrm{C}. It is now 3^{\circ} \mathrm{C}. How many degrees warmer is it now?
Answer Choices
A. 8^{\circ} \mathrm{C}
B. 3^{\circ} \mathrm{C}
C. 2^{\circ} \mathrm{C}
D. 13^{\circ} \mathrm{C}
E. 5^{\circ} \mathrm{C}