What are three valid ways to exchange data through a Pega Web Mashup? (Choose three.)

What are three valid ways to exchange data through a Pega Web Mashup? (Choose three.)
A . Use an SQL call to exchange data between the mashup and hosting web page.
B . Use the data-pega-event-onpagedata attribute to configure the default value for the gadget.
C . Use a queue processor to pass updated attributes to the gadget on the hosting web page.
D . Use an action object configured as a script to perform additional actions on a web mashup gadget.
E . Use the Javascript function doAction() to set or read data values through the hosting web page.

Answer: B,D,E

Explanation:

Reference: https://collaborate.pega.com/QUESTION/pega-mashup-data-passing