Which type of relationship can be defined with external objects? Choose 2 Answers

The app builder at Ursa Major Solar has just created a master-detail relationship between a parent object Galaxy__c and child object Star__c.
What would be the effect of creating this type of relationship if users want to report on Galaxy__c with Star__c?

Universal containers has a custom object that has a N:M relationship with opportunityLineItem carrying price and amount information. In order to compute total amounts and total prices per Opportunity using Rollup summary fields, what field type will you use.

A sales manager would like to look at an Account record and view charts of all of the related open opportunities, closed/won opportunities and open cases. How many report charts can be added to the Account page layout to meet this requirement?

What is a true statement regarding master-detail relationships? Choose 3 answers