Cranston Corporation makes four products in a single facility. Data concerning these products appear below:

$\backslash$table$[[,$Products,,$],[,$A$,$B$,$D$],[$Selling price per unit,$$42\mathrm{.}30,$$$50\mathrm{.}00,$$$37\mathrm{.}60,$$$33\mathrm{.}50,,],[$Variable manufacturing cost per unit,$$20\mathrm{.}80,$$$30\mathrm{.}70,$$$21\mathrm{.}00,$$$19\mathrm{.}90,,],[$Variable selling cost per unit,$$2\mathrm{.}70,$$$2\mathrm{.}10,$$$1\mathrm{.}00,$$$2\mathrm{.}40,,],[$Milling machine minutes per unit,$3\mathrm{.}30,4\mathrm{.}10,2\mathrm{.}60,1\mathrm{.}30,,],[$Monthly demand in units,$1,000,4,000,3,000,3,000,,]]$

The milling machines are potentially the constraint in the production facility. A total of $28,200$ minutes are available per month on these machines.

How many minutes of milling machine time would be required to satisfy demand for all four products?

Multiple Choice

$11,000$

$28,200$

$31,400$