The correct answer is A. cA air masses are colder than cP air masses.
Explanation:
In geography, air masses refer to uniform bodies of air that have specific characteristics especially in terms of temperature and moisture. This includes different air masses such as the continental arctic masses (cA), the continental polar (cP), the continental tropical (cT), the maritime tropical (mT) and the maritime polar (mP). In the case fo the continental arctic masses (cA) these are extremely cold with a temperature range from -55 to -35 °C also, they are dry and stable, these type of masses are similar to continental polar masses (cP), although these are not as cold or as dry as artic ones as they had a temperature range from -35 to -20 °C. Thus, the correct statement is "cA air masses are colder than cP air masses".
