Read the sentence below and answer the question that follows. My mother works for the post office, however; she is thinking of going back to school for a teaching degree.

Which of the choices below fixes the misplaced punctuation?

Group of answer choices

My mother works for the post office: however she is thinking of going back to school for a teaching degree.

My mother works for the post office, however, she is thinking of going back to school for a teaching degree.

My mother works for the post office; however she is thinking, of going back to school for a teaching degree.

My mother works for the post office; however, she is thinking of going back to school for a teaching degree.