Thanks for the question! Let’s take a look at what this stimulus is telling us. We’re told that some people like green carnations on St. Patty’s day, but naturally green flowers are rare, so it’s hard for plant breeders to make green carnations. So it’s a good idea for florists to stock up on white carnations, which can be dyed green and are fairly inexpensive.
So what’s the conclusion? Well, what is the argument trying to argue for, what does everything lead up to? The argument leads up to the idea that it’s a good idea for the florists to stock up on white carnations before St. Patty’s day. Why? Because green carnations are hard to get and white ones are easy to get. Both those ideas support that idea, making it the conclusion.
(B) tells us that flowers that are naturally green are very rare. This is certainly true based on the premise. But it’s not the conclusion, it’s not what the argument is trying to argue. And that’s why (B) is incorrect.
Hope this helps! Feel free to ask any other questions that you might have.
