How can vegetarians (people who don’t eat meat) get the essential amino acids? a) vegetarians can combine two or more plant protein sources that, taken together, provide all the essential amino acids. b) vegetarians can get all the essential amino acids by eating beans daily. c) vegetarians cannot get all the essential amino acids from plants and must eat a small amount of meat each week. d) vegetarians cannot get all the essential amino acids from plants and must take a daily protein powder.