Which of the Following Best Describes the Maritime Tropical Pacific

Which of the following best describes the maritime tropical Pacific (mT) and maritime tropical Gulf and Atlantic (mT) air masses?

A) They are different from one another because the Pacific air mass usually has lower specific humidity than the Gulf/Atlantic air mass.
B) Both are usually extremely unstable.
C) They are very different because the Pacific air mass is very unstable and the Gulf/Atlantic air mass is usually stable.
D) Both are less active during summer months.