The Hula Hoop, _________ in 1958, was popularized by the toy company Wham-O.

1
writing

Which choice completes the text so that it conforms to the conventions of Standard English?

A

inventing

B

having invented

C

which will be invented

D

invented

Correct Answer: D

Choice D is the best answer. The sentence requires a past participle to modify "The Hula Hoop." The hoop was "invented" in 1958.