Write the next sentence in this paragraph:

How to replace a bicycle tire
Loosen the nuts that hold the axle to the frame.
If they are extremely tight, spray some lubricant on the nuts-a silicone lubricant or even vegetable oil will do the trick very well. ( many modern bikes will not have nuts.

Pick from:
(a). ) Make sure the pedals are not facing away from you with the bolts loosened and the rear wheel pointed toward you. Take the wrench off the chain and use it to loosen the bolts that fasten the bike to the frame.
(b). ) Start biting the nut bit until it is loose enough to pop up onto the seat of the frame with ease. If there are cracks, unscrew the nut bit and pop it up onto the frame.
(c). ) just lightly wedge a hand under each nut. Loosen the hubcaps from the wheel.
(d). They have a quick-release which you can easily loosen and remove the wheel). Release the brakes if your bike is equipped with them and they interfere with wheel removal.
(d).