Public cloud providers offer various storage and computing resources to their customers at lower costs.
Which of the below helps Public Cloud providers offer cost-benefits to their customers?

Answer options:

A.Use of hardware from cost-effective vendors
B.Economies of Scale
C.Automatic updates for infrastructure of PaaS and SaaS offerings
D.None of the above

Correct Answer: B
Option A is incorrect. Public cloud providers offer varied computing and storage options. These options are cost-effective for customers because Public cloud providers purchase storage and computing resources in massive quantities and at lower costs.
Option B is correct. Public cloud providers purchase storage and computing resources in massive quantities and at lower costs. Hence they offer cost benefits to their customers.
Option C is incorrect. Automatic updates for infrastructure of PaaS and SaaS offerings are more concerned with security.
Option D is incorrect.
https://cloud.googleblog.com/2010/04/google-apps-and-cloud-maximum-economies.html