Normal Body Temperature Is $98.6^{\circ} \mathrm{F}$ Ellen's Temperature Is $100.4^{\circ} \mathrm{F}$

Multiple Choice

Normal body temperature is $98.6^{\circ} \mathrm{F}$ . Ellen's temperature is $100.4^{\circ} \mathrm{F}$ . How many degrees above normal body temperature is this?

A) $2.8^{\circ}$
B) $1.8^{\circ}$
C) $1.9^{\circ}$
D) $2.9^{\circ}$