[Solved] The trend in employment in many core countries is for larger factories to: A) employ ever larger numbers of workers B) employ a shrinking overall proportion of workers C) employ much the same proportion as in the past D) employ a shrinking proportion even as large firms retain ownership over the smaller factories Erogenous Zone: Areas of the human body that are particularly sensitive to sexual stimulation. Sensate Focus: A sex-therapy exercise in which partners take turns pleasuring each other with guided verbal feedback and in which certain kinds of stimulation are temporarily forbidden. Autoerotic Zone: Areas of the body that provide sexual pleasure when stimulated, a concept often discussed in psychoanalytic theories of sexual development. Refractory Period: The period of time immediately following an action potential during which a neuron or muscle is incapable of generating another action potential.