Answer:
The correct option is;
B. Rich, multi-media attachments as well as hyperlinks
Explanation:
The Common Alerting Protocol (CAP) is used by IPAWS for digital messages formatting
With CAP, it is possible to add multimedia content such as pictures videos and hyperlinks (IPAWS tip for July 2018) in messages which can be used where there is not enough space to include all relevant information in a Wireless Emergency Alert (WEA) text such that the link can provide further direction or feedback to the community.