Create a class Courier in Package pl. Initialize, the string variables sender name, sender city, sender state and integer variable cid. Declare the sender name as private, sender city and sender state as public and cid as protected. There are two classes Dtdc and Bluedart which extends a class Courier. Both Dtdc and Bluedart are stored package p1. Access the variables of the class Courier in the class Dtdc and Bluedart. Create a class Service in the different package p2 that extends the class Courier. Check accessibility of the members of Courier class in the class Service. Mention in the comment which member IS accessible in the class Service.