|Question 16Verbal

Source Texts

Text
Zydeco music originated in the French Creole community of southwest Louisiana. One instrument that gives zydeco its unique sound is the vest frottoir. The vest frottoir        a wearable washboard that is played by rubbing spoons or bottle openers against it.
Which choice completes the text so that it conforms to the conventions of Standard English?
is
A
were
B
are
C
have been
D