Based on diagram below, answer the questions that follows:

a$.$ What is the keyword to declare class Mini inheriting the properties of Car? $(1m$

b$.$ What is the keyword for class Mini explicitly call constructor in class Car? $(1$ m$)$

c$.$ Which class$($s$)$ is$/$are subclasse$($s$)$ from the above diagram? $(2$ m$)$

d$.$ Can we create object instantiation from class Truck and class Car? $(2$ m$)$