Correct Answer: Discordance

Solution : The correct choice is the third option.

Discordance means a lack of harmony or agreement, indicating a state of conflict or disagreement.

Harmony refers to a pleasing combination or arrangement of different elements, resulting in a peaceful and unified whole.

The meanings of the other options are as follows:

• Uniformity: It refers to the quality or state of being uniform or consistent.
• Cognizance: Awareness or knowledge about something.
• Relegation: Sending something or someone to a lower or less important position.