Concept:Human rights are not absolute and may be limited in exceptional circumstances such as a public emergency.
Explanation:The Nigerian Constitution guarantees fundamental human rights to every citizen.
However, these rights can be restricted when there is a serious threat to the nation.
A declaration of a state of emergency by the government is one such condition.
During a state of emergency, the government may suspend certain civil liberties.
These include freedom of movement, freedom of assembly, and the right to a fair trial.
Such measures are taken to maintain law, order, and national security during a crisis.
On the other hand, improving literacy, accepting foreign aid, or reviewing the constitution do not limit human rights.
These actions rather promote and protect the rights of citizens.
Answer:The correct option is D: declaration of state of emergency by the government.