What is Boolean operator?

a. a credible website described as having current information about a topic

b. a tool used to organized a search log when conducting online research

c. seacrh parameters set to identify specific information during Internet searches

d. a person who post fake information on the internet.

The Boolean operator is used when any person is searching on the internet to help the user is searching. It works like conjunction to add the two or more searching criteria and make one. These features make the searching parameter good and the user gets a good result. this concept is also stated by the option c. Hence option c is the correct answer, while the other is not because-

Option a states that Boolean operator is a website which is not correct because it is a searching parameter.
Option b states that a Boolean operator is a tool that is not correct because it is a searching parameter.
Option d states that Boolean operator is fake information which is not correct because it is a searching parameter.