Final answer:
In chess, fianchetto refers to the development of the bishop by placing it on the second square from the corner, aimed at controlling the long diagonal.
Step-by-step explanation:
In chess, to fianchetto means to develop your bishop by moving one of the pawns in front of the knight and then placing the bishop on the second square from the corner, this is option b) Bishop. This strategic move aims to control the long diagonal from a safe and distant position.
The fianchetto is a popular setup in several chess openings and its advantage lies in the increased scope and flexibility it provides for the bishop.