Read the passage and answer the following question. (1) During the month of March in 1950, Peter Hodgson introduced a toy that become a surprise sensation. (2) Six years earlier, Silly Putty was discovered by a engineer at General Electric. (3) When no practical use could be found for the product, Hodgson began to cell the bouncing putty as a toy. (4) Silly Putty flu of store shelfs more then 300 million Silly Putty eggs have now been sold. (5) Silly Putty even rocketed to the moon with the Apollo 8 Astronauts! What is the BEST correction that can be made to sentence 1? a Add a comma after toy b Change a to an c Change become to became d Change the period to a question mark