Concept:The word 'acquaintance' has a fixed standard spelling, and the correct option can be found by comparing each alternative with it.
Explanation:Write the correct spelling as A-c-q-u-a-i-n-t-a-n-c-e.
Option A, 'Aquaintance', is missing the 'c' after 'A'.
Option B, 'Acquantance', is missing the letter 'i' after 'a'.
Option D, 'Acquaintence', replaces the 'a' before 'nce' with 'e'.
Only Option C, 'Acquaintance', has all the required letters in the correct order.
Therefore, the correctly spelt word is 'Acquaintance'.
Answer:Option C: Acquaintance