I would say B. child care. As you have to provide them with food,water, clothing, etc. Hope this helps!
B) The 1920s mark the emergence of mass production and mass consumption
The answer is water because today not everybody has gold or land or silver and everybody has water and til this day still uses it.
Scientist who study the ocean floor are called" oceanographer"
hope i helped
I would go back to the 1700's to experience Pacific Island of New Britain when it was discovered.
