What Was Horace Mann's Primary Concern in the Reform Movements

What was Horace Mann's primary concern in the reform movements of the first half of the nineteenth century?

A) He stressed the importance of establishing asylums to treat the mentally handicapped.
B) He stressed the importance of establishing public schools for children.
C) He stressed the importance of establishing juvenile detention centers for youth offenders.
D) He stressed the importance of establishing orphanages to care for abandoned children.
E) He stressed the importance of establishing psychiatric treatment centers for children.