Correct Answer : Option (C) :   conformal

Explanation : When weapons are mounted at bottom of fuselage then, it is termed as conformal type of weapon carriage. Drag produced by conformal is lower than external but higher than the internal weapon carriage system.

Correct Answer : Option (B) :   External carriage

Explanation : External weapon carriage system provides more flexibility to carry different weapons. This is one of the advantages of an external type weapon carriage.

Correct Answer : Option (A) :   typical gun

Explaination : Gun is one of the most common and important weapons used in military aircraft. The above diagram is showing typical gun viewed from side. Gun should be located based on mission requirements. Ammunition container is typically located at aft end of the gun as shown.