Highest-selling toy ever?

A. Rubik Cube

B. Monopoly

C. Tickle Me Elmo

D. Hungry Hungry Hippo’s

Explanation About Highest Selling Toy Ever:

Rubik Cube’s were invented in 1974 by a Hungarian inventor but took until 1980 when they were picked up in US stores. Eventually, they gained popularity from people who were writing books on how to solve them and got marketed as an educational toy. Since that point, over 450 million units have been sold of the original Rubik’s Cube, more than any toy in the original version ever.