To answer this question, you need to understand the concept of plural forms in English.
The correct answer is B) Media.
Option A) Medium - This option is incorrect because "medium" is the singular form of the word, not the plural form.
Option C) Mediums - This option is incorrect because "mediums" is a plural form, but it is not the correct plural form of "medium."
Option D) Mediator - This option is incorrect because "mediator" is a different word with a different meaning. It refers to a person who helps to resolve disputes or conflicts.
The correct answer is B) Media. In English, the word "medium" is an example of a noun that has a different plural form. The plural form of "medium" is "media." This is commonly used to refer to various forms of communication, such as newspapers, television, radio, and the internet.