Affirming the sufficient triggers
Denying the necessary triggers
Denying the sufficient renders irrelevant and rule falls away
Affirming the necessary renders irrelevant and rule falls away
OP review the Valid Argument Form 4 in the "Some and Most Relationships." The inference (B) in this Q is very clear. (D) is reversal of the first sentence.
Right @nye8870, it's especially helpful for tricky parallel flaw questions! It's best to know that A-->B, B most C, therefore A most C is an invalid argument form rather than thinking "hmm this doesn't match up with my recollection of valid arguments."