Concept:Freedom of speech is protected as part of the broader right to freely express opinions and ideas.
Explanation:The Nigerian Constitution recognises freedom of speech as a component of the right to freedom of expression.
This right protects an individual's ability to share thoughts, ideas, and opinions without unreasonable government interference.
It is not classified under thought, privacy, or life, as those cover different interests.
Therefore, the constitutional guarantee of free speech falls under the right to freedom of expression.
Answer:C. Right to freedom of expression