Which choice most effectively combines sentences 1 and 2 ?
A Home economics, or "home ec," was once a popular subject in high
schools across America.
B Home economics was once a popular subject in high schools across America, but it is also called "home ec."
C Home economics was once a popular subject, and was called "home ec," in high schools across America.
DHome economics and "home ec" were once popular subjects in high
schools across America..