The correct answer is option 'A', Clown.

Explanation:
A clown is often associated with being zany. Let's understand what being zany means and why it aligns with the clown persona.

1. Zany Definition:
Zany is an adjective that describes someone or something as being eccentric, unconventional, or filled with humor and absurdity. It implies a sense of wildness, craziness, and unpredictable behavior.

2. Clown Characteristics:
a. Eccentricity: Clowns are known for their eccentric behavior, often engaging in quirky and unconventional antics to entertain their audience.
b. Humor: Clowns use humor as a primary tool, employing slapstick comedy, jokes, and physical comedy to make people laugh.
c. Absurdity: Clowns often engage in absurd and illogical behavior, performing acts that defy normal expectations and conventions.

3. Zany and Clown Connection:
a. Unconventionality: The zaniness associated with clowns stems from their unconventional and non-traditional nature. They often break societal norms and challenge expectations, leading to unexpected and amusing situations.
b. Wildness: Clowns are known for their wild and unpredictable behavior, which perfectly aligns with the idea of being zany.
c. Absurd Humor: The absurdity of clown acts, where they perform exaggerated and nonsensical actions, contributes to their zaniness.

In summary, a clown fits the description of being zany due to their eccentricity, humorous acts, and engagement in absurd behavior. They embody the essence of being unconventional, wild, and filled with humor and absurdity, which are the defining characteristics of someone described as zany.