Question

A: when cornflakes were invented the Kellogg
( ) were living in a sanitariun
( ) were working in a sanitariun
( ) were researching in a orphanage
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Answer 1

When cornflakes were invented the Kellogg were working in a sanitarium.

Dr. John Harvey Kellogg was the director of the Battle Creek sanitarium he and his brother Will Keith Kellogg, are the creators of the Cornflakes, John was the inventor while Will was the the business innovator, he found the way to make his brother invention profitable.