Wind chill is a measure of how cold people feel when exposed to wind outside. A good estimate for wind chill can be found using this calculation:
$\text{(wind chill)} = \text{(air temperature)} - 0.7 \times \text{(windspeed)}$
where temperature is measured in degrees Fahrenheit ($^\circ\text{F}$) and wind speed is measured in miles per hour (mph). Suppose the air temperature is $36^\circ\text{F}$ and the wind speed is $18$ mph. Which of the following is closest to the approximate wind chill?

A. 18

B. 23

C. 28

D. 32

E. 35