The lamb begin walking toward ) what preposition goes here?

Imagine you are reading a story about a character named dray. dray is captain of the basketball team and practices for hours after school in order to achieve his goals of playing in the nba. one day, dray decides that he hates basketball. he quits the team and takes up knitting instead. what is the introduction of this new plot point is an example of a. an anticlimaxb. a conclusionc. a contrivanced. a climax