Final answer:
The statement "rifling is found inside the bore and is made up of spiral lands and grooves" is true (Option A). Rifling is designed to stabilize a projectile's flight for increased accuracy and range.
Step-by-step explanation:
Rifling, consisting of spiral lands and grooves within a barrel, is true.
Rifling refers to the helical grooves that are machined into the bore of a gun barrel, which imparts a spin to the projectile when it is fired.
This spinning motion stabilizes the projectile, increasing its accuracy and range. Rifling is an important feature not only in small firearms like rifles but also in larger firearms such as cannons, emphasizing its rifling as seen in the provided image.
The spiraling pattern within the cannon barrel serves the same purpose as it does in smaller firearms.
Hence, the correct answer is true (Option A).