Quakers were a. english yeomen who learned to grow and market oats with particular success b. insisted on an even stricter doctrine of predestination and were so named because they tended to quake with fear on their deathbeds. c. believers in quiet meditation and in an ""inner light"" of grace or understanding given by god to each man and woman; they would quake or shake when receiving the light of grace d. a radical religious sect whose ministers made them quake with terror and fear for their own sinful and wretched hell-born condition