A Wave of Employment Possibilities in Applied Psychology in the First

A wave of employment possibilities in applied psychology in the first two decades of the 20th century was partly due to ____.​

A) ​700% increases in public school enrollment
B) more money being spent on defense than on education
C) ​the rise of the Veteran's administration Hospital system
D) less money being spent on education than on defense and welfare combined
E) All of the choices are correct