The Evidence on the Question of Head Start Effectiveness Suggests

The evidence on the question of Head Start effectiveness suggests that

A) there is no effect of the program whatsoever.
B) Head Start children have an advantage over equally situated children on first-grade tests of reading and verbal skill.
C) Head Start children have an advantage over equally situated children on tenth-grade tests of reading and verbal skill.
D) Head Start children have an advantage over equally situated children on the SAT.