I think he may be right. But I have not read the whole thing, so I may be wrong.
Answer:
Basic unit of a chemical element
Explanation:
Answer: it has a happy ending, often involving in a marriage.
Explanation:
The option that defines a Shakespearean play as a comedy is that it has a happy ending, often involving in a marriage. It should be noted that being a comedy doesn't mean that the storyline should be funny.
Shakespeare's Comedies involve characteristics such as young lovers being faced with challenges, separation of the lovers and later reunification, mistaken identities, etc.
It makes fun of human weaknesses through humorous characters.
It exposes human flaws by exaggerating characters' weaknesses.
It reveals a gap between belief and reality by making characters unaware of their weaknesses.