Chaucer, (whose) Canterbury Tales is one of the (most extraordinary) works in English, practically created, (or) at least (made it acceptable), a new language.

A．reach other planets
B．make a goal
C．escape from the earth
D．go upwards

A．the distinctive style of each company
B．the attempts of advertisement to attract buyers to particular brand names
C．tendency for the prices of the same goods to equalize quickly
D．the freedom of small businesses to decide the prices they will charge