to create an array of five MotorVehicle objects, iterate through this array and write the string the representation of these objects in a file so that each line is a string representation of an object.o to read the content of the file created in $($a$)$ and display the content of the file.o to read the content of the file created in $($a$)$ and recreate the objects and display whethereach object is an instance of the class MotorVehicle.Code appropriate functions outside of the class to achieve $($a$),($b$)$ and $($c$).$In php