Which sentence below is properly punctuated?
a. i am typing a letter, and she is talking on the phone.
b. she finished her work and, then took a long lunch.
c. mae said "why don't you come up and see me sometime? "
select the best answer from the choices provided a b c

Read this excerpt from “the love song of j. alfred prufrock” and answer the question.let us go, through certain half-deserted streets,  the muttering retreats  of restless nights in one-night cheap hotels  and sawdust restaurants with oyster-shells:   streets that follow like a tedious argument  of insidious intentwhat does the use of the word  muttering  suggest? a feeling of discontentthe noise of city streetsthe inability to be understooda sense of lonelinessit's not c so hel0