Select the INCORRECTLY spelt word in the following sentence.
Ratan is such an efficient sergeant that he doesn’t need to imbibe any artillery craftmanship.

Correct option is C

The word "craftmanship" is incorrectly spelt. The correct spelling is "craftsmanship". Therefore, the answer is (c).
Meaning of the words given in options:
 Artillery: large-caliber guns used in warfare on land.
 Efficient: achieving maximum productivity with minimum wasted effort or expense.
 Craftsmanship: skill in a particular craft.
 Sergeant: a non-commissioned officer in the armed forces, typically ranking above corporal and below staff sergeant.