Regarding rule inputs for expression rules, which statement is true?

Regarding rule inputs for expression rules, which statement is true?

• A. If the value passed in via rule input may be a list of numbers, the rule input must be configured as an "array".
• B. Rule inputs must always be configured as text.
• C. Rule inputs cannot accept arrays.
• D. Rule inputs must be configured as a number.

Answer: (A)

Rule inputs are typed parameters for expression rules. If the value passed in via a rule input may be a list of numbers, the rule input must be configured as an array. This lets the rule accept a collection of numeric values rather than just a single number, so you can operate on the whole set (for example, summing, filtering, or iterating over the numbers). If you only expect a single numeric value, you would configure the input as a number, but for a potential list of numbers, using an array is the correct approach. The other statements assume only single values or disallow arrays, which isn’t accurate for expression rules that handle collections.

Rule inputs are typed parameters for expression rules. If the value passed in via a rule input may be a list of numbers, the rule input must be configured as an array. This lets the rule accept a collection of numeric values rather than just a single number, so you can operate on the whole set (for example, summing, filtering, or iterating over the numbers). If you only expect a single numeric value, you would configure the input as a number, but for a potential list of numbers, using an array is the correct approach. The other statements assume only single values or disallow arrays, which isn’t accurate for expression rules that handle collections.