Ano po ang answer plss po​

1) in the era after world war i and before the great depression, american towns grew rapidly because of

Why were the farmers not satisfied with only establishing cooperatives ?

Technician a says the harmonic balancer may be attached to the crankshaft using a woodruff key and center bolt. technician b says the harmonic balancer may be attached to the crankshaft using a square key and center bolt. who is correct? choose one answer. a. technician a b. technician b c. both technician a and technician b d. neither technician a nor technician b