Using a lot$-$for$-$lot ordering strategy for the following item, what is the planned order release amount in week $3?($Note: Use a lead time of one week and the gross requirements and scheduled receipts depicted below, and assume you begin with $50$ units in inventory.$)$

$\backslash$table$[[$Week$,1,2,3,4],[$Gross requirements,$0,100,80,15],[$Scheduled receipts,$25,0,0,0],[$Projected ending inventory $(50),,,,],[$Net requirements,,,,$],[$Planned order receipts,,,,$],[$Planned order releases,,,,$]]$

A$.0$ units

B$.5$ units

C$.15$ units

D$.80$ units