The answer is A, is it sort of "commoditized" the products made with it, allowing the products to become cheaper and mass produced.
The meter was redefined by international agreement in 1983 as “the length of the path traveled by light in a vacuum in 1/299,792,458 of a second”
He made the secret police
I read 1989 instead of 1889 when I answered this question I'm really sorry about that