Explanation:

- Peril: Refers to the exposure to harm, injury, or loss. It's often used to describe situations that are filled with significant risks.

- Option 1, Doubt: This means uncertainty or lack of conviction. It’s not associated with physical danger or risk.

- Option 2, Danger: Synonymous with peril, this word describes a situation where there is an exposure to harm or injury.

- Option 3, Benefit: Means an advantage or profit gained from something. It’s positive and does not relate to risk or harm.

- Option 4, Safety: This implies freedom from harm or risk. It’s the opposite of peril.