Concept:Identify the incorrectly spelt word by comparing each option with its standard English spelling.
Explanation:Option A, "Liason," is misspelt. The correct spelling is "Liaison," which means a connection or cooperative link between groups.
Option B, "Manoeuvre," is correctly spelt. It refers to a skillful movement or series of moves.
Option C, "Reservoir," is correctly spelt. It means a natural or artificial lake used for water storage.
Option D, "Camouflage," is correctly spelt. It means disguising something to blend with the surroundings.
Answer:Option A (Liason) is the misspelt word.