Looking for answers? Westonci.ca is your go-to Q&A platform, offering quick, trustworthy responses from a community of experts. Join our platform to connect with experts ready to provide accurate answers to your questions in various fields. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

Choose the BEST revision for the beginning of sentence 29.
a. There exist historians who believe
c. Historians, who believe
b. I know of some historians who believe d. Leave as is.