Answer: Social class
Explanation:
Social class refers to a category of people who have similarities in financial status and social attributes. By social attributes, they could be in same social club, or same religious body.
Spelling mnemonic
Explanation:
mnemonics are different strategies by which we can retain memory and make recalls when necessary. These <u>mnemonics serve to recall the said memory whenever it is required by the person to do s</u>o.
<u>In a spelling mnemonic one recalls things by remembering certain aspects of its spelling.</u>
Like in this case, Chad is able to recall the name of the scientist after he hears the first letter of his name, so it helped him remember the information.
