Select the best definition of level loading.

Multiple choice question.

Manufacturing equal amounts of each product $($e$.$g$.,50$ units each of A$,$ B$,$ & C on Monday and $45$ of each on Tuesday, etc. but always uniform ratios$)$

Producing enough to keep constant buffer stock for unanticipated customer demand $($e$.$g$.,$ always keep $10\%$ of demand for A$,$ B and C in stock room$)$

Producing at the same rate or quantity each day $($e$.$g$.,100$ units of A$,$ B$,$ C each day with constant ratios$)$