What are two considerations for this proposal?

To increase adoption, Universal Containers is proposing changes to its Salesforce data model to allow easier visibility for sales reps into key metrics. The proposal has three custom objects related to the Account object, one with a master-detail, and two that are not. Each of these objects has 15 fields they would like to summarize on the Account object.

What are two considerations for this proposal? Choose 2 answers
A . Roll-up summaries allow MAX, MIN, SUM, COUNT, and AVG.
B. An object can have 20 object references.
C. An object can have 25 roll-up summaries.
D. Roll-up summaries are limited to master-detail relationships.

Answer: A,C