Washington Scientists have identified a hormone that significantly extends the lifespan of mice, a discovery that could mark a crucial step toward developing drugs that boost longevity in people.

Choose your answer: based on the paragraph above can we conclude that "Hormone increases the lifespan of mice by three fold."?

Choose from:
[1]. Yes.
[2]. It's impossible to say.
[3]. No.
I think the answer is
[2].