|Question 20Verbal

Source Texts

Text
Recently unearthed Neronian tools in France dating to 54,000 years ago and attributed to Homo sapiens may provide evidence that interactions between Neanderthals and modern humans occurred 10,000 years earlier than was previously        finding that, if true, would overturn current theories about H. sapiens migration during the Upper Paleolithic.
Which choice completes the text so that it conforms to the conventions of Standard English?
supposed a
A
supposed. A
B
supposed, a
C
supposed; a
D