Why option C is correct , I mean in option C says historians have helped establish the FACT
IN passage there is no any fact , passage says there should be more exploration
If you read carefully, the passage pretty directly stated that it is a FACT? What is the FACT? Answer: growing consumer revolution.
Where is my evidence?
While the fact of this consumer revolution is hardly in doubt, three questions remain:…
Also this consumer revolution is previously referenced in the first sentence.
Historians have only recently begun to note the increase in demand for luxury goods and services that took place in eighteenth-century England.
Also notice the author started the passages with the word “historians.” Then to support the fact that some historians have had a contribution on this fact, he exemplified two historians: McKendrick and Plumb.