it takes to process a customer.

your response rounded down to the next whole number.$)$

response rounded to two decimal places.$)$

A$.$ Steps T$3$ and T$4.$

B$.$ Steps T$1,$ T$2,$ and T$4.$

C$.$ Step T$3$ only.

D$.$ Steps T$1,$ T$2,$ T$3,$ and T$4.$

Where would the Type B customers have to wait, assuming no Type A customers?

A$.$ Steps T$6$ and T$7.$

B$.$ Steps T$1$ and T$7.$

C$.$ Steps T$1,$ T$5,$ and T$6.$

D$.$ Step T$6$ only.