The correct answer is option 1, Right to adequate livelihood.

A non-justiciable right refers to a right that cannot be enforced or protected by the court of law. In other words, it is not subject to judicial review or legal action.

Option 2, Right against exploitation, is not a non-justiciable right. It is a fundamental right guaranteed by the Indian Constitution and can be legally enforced by individuals. This right protects individuals from being forced into bonded labor, trafficking, or any form of exploitation.

Option 3, Right of accused, is also not a non-justiciable right. The right of an accused person is protected under the Indian Constitution and can be legally enforced. This includes the right to a fair trial, legal representation, and protection against self-incrimination.

Option 4, Right to life and personal liberty, is not a non-justiciable right either. It is one of the fundamental rights guaranteed by the Indian Constitution and can be legally enforced. This right protects an individual`s right to life, personal liberty, and dignity.

Therefore, the correct answer is option 1, Right to adequate livelihood, as it is not a right that can be enforced or protected by the court of law.