Answer:
The correct answer to the question is option 'B' - Policeman.

Explanation:
- A twirling stick is often associated with police officers or policemen.
- The action of twirling a stick in joy is a common gesture displayed by policemen in movies, books, and general perception.
- It is a way to show excitement or happiness, and it is often seen as a celebratory action.
- The twirling of a stick can be seen as a form of playful expression and can also be used as a way to showcase their skills or abilities.
- Policemen are known for their ability to use sticks or batons as part of their uniform and equipment.
- They are trained to handle and manipulate their batons proficiently, which includes twirling or spinning the stick.
- This skill is often displayed during parades, demonstrations, or even in everyday situations to maintain control or show authority.
- The twirling of a stick in joy can be seen as a way for a policeman to celebrate a victory, accomplishment, or a moment of happiness.
- It can also be a way to show enthusiasm, excitement, or pride in their profession.
- Overall, the twirling of a stick in joy is commonly associated with a policeman, making option 'B' the correct answer to the question.

Therefore, the correct answer to the question "Who twirled his stick in joy?" is option 'B' - Policeman.