At What Temperature Is the Celsius Scale Reading Equal to Twice

Multiple Choice

At what temperature is the Celsius scale reading equal to twice the Fahrenheit scale reading?

A) -12.3 $\degree$ F
B) -24.6 $\degree$ F
C) -12.3 $\degree$ C
D) -6.1 $\degree$ C
E) -20 $\degree$ F