Read the paragraph and the question that follows.
Though myths from around the world will differ greatly, they all have something in common. They are interesting!
Which sentence corrects the grammar usage error in the underlined sentence?
A. Though myths from around the world may differ greatly, they all have something in common.
B. Though myths from around the world had differed greatly, they all have something in common.
C. Though myths from around the world have differing greatly, they all have something in common.
D. Though myths from around the world will be differing greatly, they all have something in common.