HOTSPOT
You manage an Office 365 tenant for Contoso, Ltd.
Guest links for the SharePoint Online tenant are disabled.
You need to enable guest links for the contoso-my.sharepoint.com site collection.
In the SharePoint admin center, in which two locations can you enable guest links? To answer, select the
appropriate links in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Answer: 
correct
Agree
This interface is outdated. There is now another button on the left that has a sharing tab. So technically, the answer would be “sharing” and “sharing” if it is showing the new interface.
https://support.office.com/en-us/article/Turn-external-sharing-on-or-off-for-SharePoint-Online-6288296a-b6b7-4ea4-b4ed-c297bf833e30
MustacheMan Perfect !!
MustacheMan correct! new interface left sharing tab more options than button