The correct option is C Ball, gloves, and helmet
Given: The boy had $50.
As per the options, if the boy bought a bat, ball, and gloves, the total cost would be
30+5+20=55.
If the boy bought a bat, ball, and helmet, the total cost would be 30+5+25=$60.
If the boy bought a ball, gloves, and helmet, the total cost would be 5+20+25=$50.
If the boy bought a bat and helmet, the total cost would be 30+25=$55.
Hence, from the options given, the boy could purchase a ball, gloves, and helmet.