Your first choice is right
I believe that the MOST reasonable answer would be A.) never use daffodils with other flowers in arrangements. If they are harmful to other plants it would be best to just keep them seperate, and the rest of the other options just seem unreasonable and too much work just for something so simple :P
Not doing any of this is why Preventing LO/TO accidents begins with training three groups of employees: Authorized employees generally include your electricians, maintenance personnel, and some machine operators.
All of the above (correct me if I’m wrong) :)