Hi, all:

Sorry I'm a beginner level DIY-er. Recently we had our hardwood floor
sanded and refinished. After it was done, we found that the hardwood
floor now has a "gap" at the edges of the floor and the wall (probably
drywall, not sure what is the material). I'm thinking of doing some
caulking but don't know which kind of caulk I should apply, any
suggestions? Thanks!