The correct answer is C. emphasised.
The old father emphasised the moral of unity by asking each of his sons to break the bundle of sticks. This is because when the sticks are broken individually, they are easily broken. However, when they are bundled together, they are much stronger and cannot be broken easily. This is a metaphor for the importance of unity. When people are united, they are stronger and more powerful than when they are divided.
The other options are incorrect because they do not accurately describe what the old father did.
- Voiced means to express something in words. The old father did not simply express the moral of unity; he emphasised it by asking each of his sons to break the bundle of sticks.
- Declared means to make a formal statement. The old father did not make a formal statement about the moral of unity; he emphasised it by asking each of his sons to break the bundle of sticks.
- Suggested means to offer an idea or course of action. The old father did not suggest the moral of unity; he emphasised it by asking each of his sons to break the bundle of sticks.