The Patient Has Just Returned from Having an Arteriovenous Fistula

The patient has just returned from having an arteriovenous fistula placed.The patient asks,"When will they be able to use this and take this other catheter out?" The nurse should reply,

A) "It can be used immediately, so the catheter can come out anytime."
B) "It will take 2 to 4 weeks to heal before it can be used."
C) "The fistula will be usable in about 4 to 6 weeks."
D) "The fistula was made using graft material, so it depends on the manufacturer."