Which component can be used for sending messages from one application to another?

What is a servlet in Java?

A. A Java program that runs on the server to handle client requests

B. A type of coffee bean

C. A Java class used for file I/O

D. A Java keyword

Which of the following is a valid method in the `HttpServlet` class in Java?

A. `handleRequest()`

B. `runServlet()`

C. `execute()`

D. `doGet()`

What is the purpose of the `web.xml` file in a Java web application?

A. To define JavaBean properties

B. To execute SQL queries

C. To configure servlet mappings and other web application settings

D. To create JavaBeans

In Java Servlets, what is the purpose of the `HttpServletRequest` object?

A. To create JavaBean properties

B. To encapsulate the client's request information

C. To manage JavaBean events

D. None of These