2. Choose the coordination option that correctly joins the two sentences below:
An alligator's snout is rounded, or U-shaped. A crocodile's snout is pointed, or V-shaped.
A. An alligator's snout is rounded, or U-shaped; a crocodile's snout is pointed, or V-shaped.
B. Both revised sentences are correct.
C. Both revised sentences are incorrect.
D. An alligator's snout is rounded, or U-shaped; in contrast, a crocodile's snout is pointed, or V-shaped.