Which two integration directions should the consultant recommend?

Career Services uses a separate event management system for its employment events attendance and registration, and Marketing cloud to promote the event. It wants to integrate student data in Salesforce to identity engaged prospects by matching them with event attendance, career interest, and credit completion towards an academic major.

Which two integration directions should the consultant recommend? Choose 2 answers.
A . One-way integration between Marketing Cloud and the event system
B . One-way integration between Salesforce and Marketing Cloud
C . Two-way integration between the event system and Marketing Cloud
D . Two-way integration between the event system and Salesforce

Answer: B,D