$1$

Using the cut$-$and$-$try method for aggregate operations planning, we can back calculate beginning inventory if we knew the va relevant variables. What should have been the initial inventory in units of demand, if the production requirement in units of pr demand forecast is $1,000,$ and the necessary safety stock is $20$ percent of the demand forecast, Choose the right answer for th inventory.

a$.1,900$

b$.$ Cannot find it

c$.300$

d$.500$

e$.100$