Cain killed Abel... Is that what you are looking for?
The best and most correct answer among the choices provided by the question is t<span>he primary purpose is to provide information to perform a task.
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Rick Riordan is a New York Times bestselling author due to his fantasy novels depicting gods of any ancient mythologies. The most famous among his work is the Percy Jackson series wherein characters were portrayed as the descendants of the Greek gods. Other mythologies that are his subjects include Egyptian, Roman, and Norse.