Explanation
The traffic sign "Petrol pump" is a D: Informatory sign.
An informatory sign provides information to drivers about services, destinations, or facilities on or near the road. The "Petrol pump" sign is used to indicate the presence or location of a petrol station where drivers can refuel their vehicles. Informatory signs are typically rectangular with white text or symbols on a blue background. They are meant to provide helpful information to drivers without mandating specific actions or warning of hazards.