Which sentence is punctuated correctly?

a: My father loved talking about history, particularly: the Civil War, the Cold War, and the Revolutionary War.

b. There were several scientific processes I wanted to learn about such as, photosynthesis, diffusion, and osmosis.

c, The only states that Marina had yet to visit were: Colorado, Wyoming, North Dakota, and Rhode Island.

d. When studying mythology, I learned about several gods and goddesses: Zeus, Apollo, Aphrodite, Hermes, and Hercules.