Answer:
a mnemonic
Explanation:
Brian is trying to remember the colors of the visible spectrum: red, orange, yellow, green, blue, indigo, and violet. Brian decides to use the acronym ROYGBIV, which contains the first letter of each of the colors' names. Brian is using a mnemonic to remember the colors. A nmemonic is any structured pattern or idea which could be visual or verbal that helps individuals to easy remember things. This patterns include the use of acronyms, rhymes, peg-word methods and even chunking.
