Which of the following statements about MRP is INCORRECT?

Group of answer choices

a$)$ Wes and Steve sometimes buy supplies at major retailers like Walmart and Target. These companies use MRP in their operations.

b$)$ The Master Production Schedule tells Wes and Steve how many end items are to be produced and in what period

c$)$ Lot$-$for$-$Lot ordering is especially critical for companies that produce perishable goods $($like theirs$)$

d$)$ To accurately determine net requirements, a company must consider current$/$expected inventory levels