two step process $-$

$-4$ applicants arriving every $1$ hour

Step $1-10$ minutes to assess if the applicant has all appropriate paperwork to move onto next step.

Only $80\%$ of applicants have appropriate paperwork to move onto the next step.

Step $2-$ Road test takes $12$ minutes and after passing they receive their license

What is the average throughput time for an applicant who receives his$/$her license?

a$.42\mathrm{.}1$ minutes

b$.63\mathrm{.}3$ minutes

c$.90$ minutes

d$.104\mathrm{.}2$ minutes