The Egyptologist, who had worked with the business person, was convinced that King Tut's tomb was in the Valley of the Kings. Independent Clause: The Egyptologist was convinced that King Tut's tomb was in the Valley of the Kings. Adjective Clause: Who had worked with the business person.
My guess would be A.<span>It causes the lines to stand out so the reader reflects on their importance. But I'm only 98% sure on that so don't just rely on my answer lol. I still hope it helped a bit! Good Luck! :)</span>