flush toilets were first used in india and pakistan over 2,700 years ago. there were also toilets in ancient…

flush toilets were first used in india and pakistan over 2,700 years ago. there were also toilets in ancient egypt and china. in the roman empire, toilets were part of some public bath houses for men and women. then, in 1775, alexander cummings invented part of the flush toilet called the s - trap. this part used standing water to seal the outlet of the bowl. this kept the smell from the sewer from escaping. the s - trap is still used today.\nwhat is the central idea of this story?\n○a. alexander cummings invented the flush toilet.\n○b. flush toilets have been around for a long time.\n○c. ancient egypt and china had flush toilets.

flush toilets were first used in india and pakistan over 2,700 years ago. there were also toilets in ancient egypt and china. in the roman empire, toilets were part of some public bath houses for men and women. then, in 1775, alexander cummings invented part of the flush toilet called the s - trap. this part used standing water to seal the outlet of the bowl. this kept the smell from the sewer from escaping. the s - trap is still used today.\nwhat is the central idea of this story?\n○a. alexander cummings invented the flush toilet.\n○b. flush toilets have been around for a long time.\n○c. ancient egypt and china had flush toilets.

Answer

Brief Explanations:

The text starts by stating flush toilets were first used over 2,700 years ago in India and Pakistan, mentions their presence in ancient Egypt, China, and the Roman Empire, and then talks about a 1775 invention related to them. It's about the long - standing existence of flush toilets. Option A only focuses on one inventor. Option C only mentions two places. The overall text is more about the long history.

Answer:

B. Flush toilets have been around for a long time.