GMAT Critical Reasoning (CR) | Re: Advocate: Millions of plastic shopping bags are discarded every day in

i selected A in this :A similar tax in several European countries resulted in a 90% decrease in the number of plastic bags used by consumers each year

though i took a bit longer time to do this question (3 min 16 sec) . i eliminated all the choice other than A and B (C D and E are easy to eliminate) .i was little wary about A initially because many instructors have noticed this trend that if we are talking about the success of certain plan then the option which specifically talks about the success