What is the author's MOST LIKELY purpose for writing this text? A) to persuade readers to improve their homes B) to advertise products for home improvement C) to educate readers on how to improve homes D) to explain the importance of home improvement

Which sentence is punctuated correctly? the shoes normally cost 40 dollars, however; we got them on sale. the shoes normally cost 40 dollars however we got them on sale. the shoes normally cost 40 dollars, however, we got them on sale. the shoes normally cost 40 dollars; however, we got them on sale.