Correct Answer: Hindrance

Solution : The correct choice is the first option .

Permission means the act of allowing or granting approval for something. Hindrance means something that causes delay, interruption, or difficulty, thus, the opposite of "permission".

The meanings of the other options are as follows:

• Authorisation conveys the idea of granting approval.
• Liberty means the state of being free.
• Consent means giving approval or agreement.