Sentence:  There are three possibilities : ( a ) **f remains tangent to C as it is <WSD>translated</WSD> ; ( b ) **f moves away from C and does not intersect it at all for **f ; ( c ) **f cuts across C and there are two ordinary intersections for every t in **f . 
Meaning of the word marked with <WSD> tags:  change the position of (figures or bodies) in space without rotation