Question $8$

How does the given function improve the code versus if no function was present?

double FahrenheitToCelsius$($double fahrenheit$)\{$

$\}$

return $($fahrenheit $-32\mathrm{.}0)*5\mathrm{.}0/9\mathrm{.}0$;

int main$($void$)\{$

double fahrenheit;

scanf$("\%$lf$",$ &fahrenheit$)$;

int $c1$;

int $c2$;

int $c3$;

c$1=$ FahrenheitToCelsius $($fahrenheit$)$;

$c2=$ FahrenheitToCelsius$(32\mathrm{.}0)$;

c$3=$ FahrenheitToCelsius$(72\mathrm{.}0)$;

$\}$

return $0$ ;

The use of the function decreases redundant code

The use of the function makes main$()$ run faster

The use of the function reduces the number of variables in the code

The function does not improve the code