\qquad c=\dfrac{5}{9}(f-32)c= 9 5 (f−32)c, equals, start fraction, 5, divided by, 9, end fraction, (, f, minus, 32, )the equation above shows how a temperature fff, measured in degrees fahrenheit, relates to a temperature ccc, measured in degrees celsius. based on the equation, which of the following must be true? a. \text{i.}i. start text, i, point, end text a temperature increase of 111 degree fahrenheit is equivalent to a temperature increase of \dfrac{5}{9} 9 5 start fraction, 5, divided by, 9, end fraction degree celsius. b. \text{ii.}ii. start text, i, i, point, end text a temperature increase of 111 degree celsius is equivalent to a temperature increase of 1.81.81, point, 8 degrees fahrenheit. c. \text{iii.}iii. start text, i, i, i, point, end text a temperature increase of \dfrac{5}{9} 9 5 start fraction, 5, divided by, 9, end fraction degree fahrenheit is equivalent to a temperature increase of 111 degree celsius.