Liberals tended to belong to the
lower class
middle class
upper middle class
upper class

i believe the answer is d. it was not uncommon for people to faint or even convulse at these high-energy meetings.

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.