pErCEntAgE oF stuDEnts who rEportED spEnDing timE on homEwork AnD wAtChing tElEvision

in 1996, whAt pErCEnt oF Fourth-grADErs DiD BEtwEEn 1 AnD 2 hours oF homEwork pEr DAyA、5%
B、
B、15%
C、25%
D、40%
E、55%