Correct Answer: discord

Solution : The correct choice is the fourth option.

Explanation: "Harmony" refers to a state of agreement or peaceful coexistence. Its antonym, "discord" represents a lack of agreement, disagreement, or conflict.

The meanings of the other options are as follows:

• Creativity is the ability to produce original and imaginative ideas.
• Friendship is a state of mutual trust and support between individuals.
• Understanding means comprehension or grasp of concepts, ideas, or situations.