What is the easiest way for Felix to do this?

Felix is the Vlocity CPQ Administrator, and he’s creating a new product bundle that includes a child product. There can only be one child product at a time in the bundle; it must be added automatically to the cart along with the parent product; and users should be prevented from deleting it.

What is the easiest way for Felix to do this? Note: This question displayed answer options in random order when taking this Test.
A . To create a child product with a cardinality of 1, 1, 1
B. To create an Auto-Add product configuration rule and a Requires product configuration rule
C. To set the Auto-Add and No Delete flags
D. To create a configuration context rule

Answer: C