Consider a process flow starting with a customer placing an order online for a pizza, followed by order taking and processing, and ending with the delivery of the pizza to the customer and completion of the transaction. What potential lean strategies can be applied in this process?

a$.$

A$)$ Using software to plan the best driving route to save time and fuel.

b$.$

B$)$ Implement a digital ordering system to simplify entering orders and reduce mistakes.

c$.$

C$)$ Standardizing pizza preparation processes to enhance efficiency and consistency.

d$.$

D$)$ Implementing Just$-$in$-$Time inventory to minimize waste and reduce holding costs.

e$.$

E$)$ All of above are correct