An advocate of the just$-$in$-$time inventory system would advocate:

An advocate of the just$-$in$-$time inventory system would advocate:

Maintaining a large inventory selection for customers.

Leaving extra time in order to make inventory deadlines.

Maintaining a small inventory supply.

Last$-$in$,$ first$-$out $($LIFO$)$ over first$-$in$,$ first$-$out $($FIFO$).$