How much additional storage is needed?

Сontoso, Ltd. has a SharePoint Online tenant and uses an Office 365 Enterprise E1 plan.
The company currently has 9,000 users and has 5 TB of content on local file shares. You must minimize storage costs.
You need to migrate the content from the local file shares to SharePoint Online.
How much additional storage is needed? cloud storage that can be accessed from anywhere and that syncs with their PC/Mac for offline access.

A.
500 GB

B.
5 ТВ

C.
10 ТВ

D.
No additional storage is needed

Explanation:

Included in Office 365 Enterprise E1 plan is OneDrive for Business, which gives each user 1 TB of personal
Limits in SharePoint Online in Office 365 plans include:
Storage base per tenant: 1 TB + .5 GB per subscribed user + additional storage purchased.
You can purchase an unlimited amount of additional storage.
In this scenario there are 9,000 users, and we assume they 0.5 GB per user we would need 4.5 TB. That is, 5
TB would be sufficient.
References: https://support.office.com/en-us/article/SharePoint-Online-software-boundaries-and-limits-
8f34ff47-b749-408b-abc0-b605e1f6d498