What's the best way to get better articulation and omature when playing high notes on a flute?

plz only answer if you are sure.

What is the purpose of accentuating a musical note in an unexpected place in a piece of music? a. to stress on certain words to impart a sense of importance b. to complement or support the musical composition c. conveys happiness, enthusiasm and excitement d. adds an element of surprise and enhances rhythmic pleasure for the listener