Which of the following is true about Roll-up Summary Fields?
A. Roll-up Summary can be used to compute SUM, MIN, MAX, AVG over a set of records.
B. Roll-up Summary Fields are readonly.
C. Roll-up Summary can only be set on the parent of a Master-Detail or Lookup relationship.
D. The results of the Roll-up Summary is displayed on the child in a master-detail relationship.
Suggest answer: B
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