You have been given the responsibility of evaluating a mid-level online storefront solution created by a company. Which of the following parameters is not essential while evaluating a storefront?

A.
Integration of the storefront with invoicing, inventory and shipping systems.

B.
Authorization of credit cards.

C.
Evaluation of the hardware, operating system, e-Commerce software and Web server software used to create the site.

D.
Accessibility of the storefront to the consumer