(1) Let the domain be all the human beings. Consider the following predicates: D(x):x is a Democrat senator R(x):x is a Republican senator H(x):x is rich P(x,y):x is more popular than y (12 pts) Using the predicates given, appropriate quantifiers, and logical connectives, write each given English language statement as a wff in predicate logic. (a) Biden is more popular than Democrat senators. (b) No Republican senator is rich. (c) Democrat senators that are not rich are more popular than Republican senators