Go to http://slideplayer.com/slide/10613587/ and it will tell you
B. I wrote my shopping list and put: milk, soup, chicken, and ice cream on it.
Because according to the Rule, it's unnecessary to Use a colon if after a verb or a preposition.
The word "put" is a verb so therefore, the answer is B.
Answer: Plants found in the ocean. An example would be seaweed!
hope this helped :)