Which step should occur after you have pumped the tube with air? a) pump more air back into the tube b) twist the rest of the tube into the tire c) place the valve through the hole in the rim d) tuck the edge of the tire back into the rim

The answer is C.

The story says, "Then, gently put the valve of the tube through the hole in the rim and insert the rest of the tube into the tire, being careful not to twist it."

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long  

to not go near anything hot