Keywords are words or phrases that describe content. They can be used as metadata to describe images, text documents, database records, and Web pages. ... Keywords are used on the Web in two different ways: 1) as search terms for search engines, and 2) words that identify the content of the website.
In programming, a keyword is a word that is reserved by a program because the word has a special meaning. Keywords can be commands or parameters. Every programming language has a set of keywords that cannot be used as variable names. Keywords are sometimes called reserved names .
If we define a method in a derived class with same declaration type as that of base class then it is said to be overriding a function which behaves differently which will depend on the object which is calling the method.
Option a,b and c are not any kind of methods we implement using coding.
Option d is done when number or data types of parameters are different than the declaration of the base type.
