Complete the MRP record. The lot size is a multiple of $60$ with a holing cost of $$300$ per unit per period. What is the period with the largest holding cost for the both average and end item values? $($average$/$end$)$

d$.$ Period $4/$Period $7$a$.$ Period $4/$Period $2$b$.$ Period $1/$Period $2$c$.$ Period $2/$Period $2$

a$.($$$63,000,$ $$78,500)$c$.($$$23,000,$ $$28,000)$b$.($$$57,400,$ $$48,000)$d$.($$$63,000,$ $$28,000)$

a$.$ lead timesb. item cost$$c$.$ bills of materials $($BOM$)$d$.$ lot sizes