Microsoft Certification Exam 70-778 question

Hi, can anybody knows the correct answer of this question:

You have power BI report in an app workspace.

You Plan to embed a report from the app workspace into a line of business application by using power BI embedded.

Which information should yoy provide to developers?

a- the application token and report URL

b- the app workspace name and the access key

c-the access key and the report id

d= the report url and a user name.

thanks!