20. Sentence 11: Still, do-it-yourself
 renovations is usually a source of pride
 for new homeowners, no matter how hard
 or how frustrating.
 What correction should be made to this
 sentence?
 (1) remove the comma after Still
 (2) change is to are
 (3) change the spelling of usually to
 usualy
 (4) remove the comma after homeowners
 (5) no correction is necessary