completed chairs have four legs

$($

among other pieces

$)$

$$tht miust be assembled together. chair legs only go into completed chairs. here is the MRP table fo the completed chairs. You are planning the production shcedule for c hair legs. you have $160$ in stock right now. chair legs have a lead time of $1$ week to produce, and the lot sizing rule used is lot for lot. when will you first plan on producing chair legs? in other words, in what period will you have your first planned order release for chair legs?