Read the sentence and answer the question.
The woman walked into a office and promptly turned around and left.
The sentence has an error with article usage. Which sentence corrects that error?
1 The woman walked into a office and promptly turned around and left.
2 The woman’s walked into a office and promptly turned around and left.
3 An woman walked into a office and promptly turned around and left.
4 The woman walked into the office and promptly turned around and left.
5 The woman walked into a office an promptly turned around and left.