Which of the Boolean operators will be used when one wants to exclude a terminology in a
search?

NOT

Explanation:

Boolean logic refers to a theory of mathematics developed by the prominent British mathematician, called George Boole. In Boolean logic, all variables are either true or false and are denoted by the number "1" or "0" respectively; True = 1 or False = 0.

Also, Boolean logic allow users to combine keywords with Boolean operators (quotes, AND, OR, near/n) to give a more personalized and relevant search results.

The Boolean operators which will be used when one wants to exclude a terminology in a search is NOT. It is an operator that instructs the database to eliminate or exclude all the terminologies that succeeds (follows) it from the search engine results.

Some examples of a Boolean logic search using NOT as the Boolean operator are;

I. The number of people in Atlanta NOT Florida.

II. Best stock market securities NOT bonds sold in 2021.

III. Football club in England NOT Germany.

i think it's either 'to expose the corruption of the communists in russia', or 'to criticize animal brutality by communists in russia.'  

hope this ! : )

i think the answer is second