The language ONLYA accepts all words with only as in them. The language ONLYB accepts all words with only bs in them. The language ONLYAORB accepts all words with only as or only bs in them.

(c) give a Finite Automaton for the language ONLYA; (d) give a regular expression and Finite Automaton for the language ONLYB; (e) give a regular expression and Finite Automaton for the language ONLYAORB;