The correct statement is option 'C': Ignorance of law is no excuse.

Explanation:
Ignorance of law is a principle in legal systems that states that a person's lack of knowledge or awareness of a law does not excuse them from liability for violating that law. This means that even if a person is unaware of a law or claims to be ignorant of it, they can still be held responsible for any consequences or penalties that result from their actions.

This principle is based on the idea that laws are made known to the public through various means such as publication, education, and legal proceedings. It is expected that individuals should take reasonable steps to familiarize themselves with the laws that are relevant to their activities or conduct. Ignorance of the law is therefore considered to be a failure on the part of the individual to fulfill this responsibility.

There are several reasons why the principle of ignorance of law is no excuse is upheld:

1. Promotes legal certainty: Ignorance of the law would create uncertainty and undermine the effectiveness of the legal system. If individuals could avoid liability simply by claiming ignorance, it would be difficult to enforce laws and maintain order in society.

2. Encourages personal responsibility: Ignorance of the law is seen as a failure to take personal responsibility for one's actions. It is expected that individuals will make an effort to educate themselves about the laws that govern their behavior.

3. Prevents abuse and manipulation: Allowing ignorance as an excuse could open the door for individuals to claim ignorance as a way to avoid punishment or consequences for their actions. This could be exploited and lead to a breakdown of the legal system.

It is worth noting that there are some exceptions to this principle in certain circumstances, such as when a law is extremely obscure or when a person has a reasonable excuse for their ignorance, such as a language barrier or a lack of access to legal resources. However, these exceptions are limited and do not generally apply to the average individual.

In conclusion, the statement "Ignorance of law is no excuse" is true because individuals are expected to be aware of and comply with the laws that apply to them, regardless of their knowledge or understanding of those laws.

C