Which of the following best reflects pooling capacity to reduce restroom queue lengths?

a. Add more toilets to increase capacity. 

b. Install a flexible partition that can alter the size of the women’s and the men’s restrooms. 

c. Convert the separate men’s and women’s rooms into a single unisex restroom (that both men and women can use). 

d. Remove mirrors in the restroom to decrease the time users spend in the restroom. 

e. Add automatic flush capability to each toilet to decrease processing times.