In the text "Running Water, Please" the author explains

A.

the availability, purification, and plumbing of running water in the past hundreds of years.
B.

that asking for running water is a joke and will make people laugh.
C.

drinking water is a worry–free activity today.
D
.

that the word plumbing comes from the Latin word for lead.

A. the availability, purification, and plumbing of running water in the past hundreds of years.