What are some of the restrictions that apply when defining parallelization blocks in calculation views? Note: There are 2 correct answers to this question.

What are some of the restrictions that apply when defining parallelization blocks in calculation views? Note: There are 2 correct answers to this question.
A . Multiple blocks can only be defined within a single calculation view.
B . Only one block can be defined across a stack of calculation views.
C . The block must only have one start node.
D . The block must start with a node that defines a table as a data source.

Answer: B D