Final answer:
Kellogg believed that cholera came from drinking water from the holes dug by campers, which aligns with the historical findings of Dr. John Snow, who linked the spread of cholera to contaminated water sources during the 1854 London epidemic.
Step-by-step explanation:
Kellogg believed that the cholera epidemic was caused by drinking water from the holes dug by campers. When answering the question "Where does Kellogg think the cholera came from?", the correct option is B, From drinking water from the campers.
Dr. John Snow's investigation during the 1854 cholera epidemic in London supported this notion, determining that cholera was spread through contaminated water sources. His work countered the prevailing miasma theory of the time and established the foundations for modern epidemiology and public health. Snow's meticulous mapping of cholera deaths around water sources like the Broad Street pump and his subsequent removal of its handle proved crucial in reducing the epidemic's toll.
His research indicated that sewage-contaminated water was the primary vehicle for the spread of cholera.