The Prescriber Tells a Patient to Call If a Temperature $\circ$

The prescriber tells a patient to call if a temperature higher than 39 ^$\circ$ Centigrade develops.The patient asks the nurse what this temperature is in Fahrenheit.What is the nurse's response?

A) 99.2 ^$\circ$
B) 100.2 ^$\circ$
C) 101.2 ^$\circ$
D) 102.2 ^$\circ$