A firm wants to develop a level material use schedule based on the following data. What should be the setup cost?

Desired lot size:

$60$

Annual demand:

$40,000$

Holding cost:

$$20$ per unit per year

Daily production rate:

$320$

Work days per year:

$250$

Question $2$ options:

a$)$

$$45$

b$)$

$$0\mathrm{.}45$

c$)$

$$4\mathrm{.}50$

d$)$

$$500$

e$)$

$$450$