Which characteristic of this Community will cause display problems when accessed from an Android mobile device?

Universal Containers creates a Community for their end users to access invoices. The invoice pages are mobile of responsive and utilize rich text styling for the amount totals in each column. Mobile access to these invoices is important. The API Enabled profile permission has been turned on to allow Salesforce mobile access to external users with Communities licenses .

Which characteristic of this Community will cause display problems when accessed from an Android mobile device?
A . ‘API enabled’ profile permission
B . Mobile responsiveness
C . Community URL access
D . Rich text styling

Answer: D