Bill's Bank processes loans that must pass through three consecutive stages $(1,2,$ and $3).$ The stages have output rates of $6,4,$ and $5$ loans per hour, respectively. The overall process capacity of Bill's Bank would be:

Loan Process

Stage $1$

Stage $2$

Stage $3$

$(6$ loans$/$hour$)$

$(4$ loans$/$hour$)$

$(5$ loans$/$hour$)$

$5$ loans per hour

The answer cannot be determined based on the given information

$4$ loans per hour

$6$ loans per hour