The class diagram will include the following classes and relationships:

Classes:

User

Attributes: userID $($String$),$ name $($String$),$ contactInfo $($String$)$

Methods: registerUser$(),$ removeUser$(),$ displayUserDetails$()$

Driver

Attributes: driverID $($String$),$ name $($String$),$ licenseNumber $($String$),$ vehicleInfo $($String$),$ availabilityStatus $($Boolean$)$

Methods: registerDriver$(),$ removeDriver$(),$ displayDriverDetails$(),$ updateAvailability$()$

Ride

Attributes: rideID $($String$),$ userID $($String$),$ driverID $($String$),$ pickupLocation $($String$),$ destination $($String$),$ status $($String$)$

Methods: requestRide$(),$ allocateDriver$(),$ displayRideDetails$()$

RideManager

Attributes: userList $($List$),$ driverList $($List$),$ rideList $($List$)$

Methods: registerUser$(),$ removeUser$(),$ displayAllUsers$(),$ registerDriver$(),$ removeDriver$(),$ displayAllDrivers$(),$ requestRide$(),$ allocateDriver$(),$ displayOngoingRides$(),$ displayRideHistory$()$

Main

Methods: main$()$

Relationships:

User$-$Driver Relationship: No direct association needed since interaction is managed through rides.

Ride$-$User Relationship: Many$-$to$-$one $($each ride is associated with one user$).$

Ride$-$Driver Relationship: Many$-$to$-$one $($each ride is associated with one driver$).$

RideManager$-$Ride, User, Driver: Aggregation $($RideManager contains lists of Users, Drivers, and Rides$).$

Make a Class Diagram from it$.$