According to Guiness World Records, the author who has the most published works is L. Ron Hubbard.
As of 2006, when his last work was published, Hubbard has written 1084 works which were then published. He wrote many things, ranging from sci fi, fantasy, romance, self-help, aviation, travel, mystery, etc. which is why the number is so high.
<span>Latin root corpus, meaning "body," in English the word,incorporated means "formed or added into a body."</span>
4, I guess, if the question is asking the most efficient way for them to study, but also if it's asking for a clear sentence. :) If this is not what you're looking for, explain to me what you need help with. I'll be glad to.