Which set should you use?

You are defining a named set by using Multidimensional Expressions (MDX) in a sales cube.
The cube includes a Product dimension that contains a Category hierarchy and a Color
attribute hierarchy.
You need to return only the blue products in the Category hierarchy.
Which set should you use? (More than one answer choice may achieve the goal. Select the
BEST answer.)

A.
Option A

B.
Option B

C.
Option C

D.
Option D