Final answer:
Atlantic Canada falls under the climatic zones of types C and D, with coastal areas experiencing type C climate and the northern regions having type D climate.
Step-by-step explanation:
Atlantic Canada has a mix of Type C (moderate/temperate) and Type D (cold/continental) climates, with the coastal areas being milder due to the Atlantic Ocean and the interior exhibiting cold winters and warm summers. Atlantic Canada falls under the climatic zones of types C and D. Type C refers to moderate or temperate climates, while type D refers to cold or continental climates. Coastal areas in the Maritime Provinces, like Nova Scotia and New Brunswick, experience type C climates with relatively cooler summers and mild winters. However, as you move farther north and inland, the climate transitions to type D, characterized by colder winters and seasonal variations in precipitation. Therefore, the correct answer is D. All of the above.