Question

The use of the words and, not, and or in a search engine is known as

Answer 1

Boolean search terms.

Adding the words AND, NOT, and OR into your search phrase can help widen or narrow your findings. If you want to make sure your answers bring up two different ideas or terms that are both found in the text results, you can add AND between them. If you want to broaden your search to include many different phrases you can add OR in between them. It's called a Boolean search because it was devised by George Boole. 

Answer 2

it is  c- boolean search terms