You need to ensure that the Web Part can send data to other Web Parts in the site

You plan to create a Web Part for a SharePoint site. You need to ensure that the Web Part can
send data to other Web Parts in the site. What should you do?

A.
Create a custom interface that uses the ConnectionProvider and ConnectionConsumer
attributes.

B.
Create a custom interface that uses the WebBrowsable and the WebPartStorage attributes.

C.
Implement the IAlertUpdateHandler interface.

D.
Implement the IAlertNotifyHandler interface.