Answer the following question based on the Compton's Encyclopedia reading:

Which choice best describes the reasons behind Jonas Salk's decision to search for a cure for poliomyelitis? (10 points)

a
The disease affected children in the United States all of Salk's life.
b
The disease became an epidemic shortly after Salk became a doctor.
c
Jonas Salk's own child contracted poliomyelitis as an infant.
d
Jonas Salk suffered from poliomyelitis as a young child.