An apple loses 4.700 kJ of heat as it cools per degree Celsius drop in its temperature. The amount of heat loss from the apple per degree Fahrenheit drop in its temperature is ________.

a) 8.46 kJ/degree Fahrenheit
b) 2.611 kJ/degree Fahrenheit
c) 8.46 kJ/degree Celsius
d) 2.611 kJ/degree Celsius