$17)$ The operations manager for the Blue Moon Brewing Co$.$ produces two beers: Dark $($D$)$ and Lite $($L$).$ Two of his resources are constrained: production time, which is limited to $8$ hours $(480$ minutes$)$ per day; and malt extract $($one of his ingredients$),$ of which he can get only $900$ gallons each day. To produce a keg of Dark beer requires $1$ minute of time and $3$ gallons of malt extract, while each keg of Lite beer needs $2$ minutes of time and $1$ gallons of malt extract. Profits for Dark beer are $$2$ per keg, and profits for Lite beer are $$5$ per keg. Assume D and L are the number of dark and lite kegs of beer to produce respectively. Answer the following based on a Linear Programming $($LP$)$ formulation of the problem.

Which of the following is not a feasible production combination?

$100$D & $100$L