Correct option is B
Pitch:
It is a center-to-center distance between two consecutive rivets or bolts measured parallel to the direction of load in a member, or for plates, it is center to center distance between two adjacent rivets or bolts measured along the length of the connection.
Gauge:
It is center to center distance between two adjacent rivets or bolts measured normally to the direction of load in member or it is a distance between two adjacent rivet lines or bolt lines.
End distance:
It is a distance from the center of a hole to the nearest edge of the main plate measured parallel to the direction of the load.
Edge distance:
It is a distance from the center of a hole to the nearest edge of the main plate measured normally to the direction of load in a member.
