New Labs just announced that it has received a patent for aproduct that will eli

New Labs just announced that it has received a patent for aproduct that will eliminate all flu viruses. This news is totallyunexpected and viewed as a major medical advancement. Which one ofthe following reactions to this announcement indicates the marketfor New Labs stock is efficient?-The price of New Labs stock remains unchanged.-The price of New Labs stock increases rapidly and then settlesback to its pre-announcement level.-The price of New Labs stock increases rapidly to a higher priceand then remains at that price.-All stocks quickly increase in value and then all but New Labsstock fall back to their original values.-The value of all stocks suddenly increase and then level off attheir higher values.