Alleles refer to the DNA!! So B!
Warm air rises, expands, then cools. As cool air sinks it may cause precipitation. Some air masses such as the MT which originate in warm environments carry humid air and cause heavy precipitation in some areas.
The bloomers fashion included an amalgamation of dress and trousers as a fashion trend during the height of civil rights clamor. The clothes were castigated by men for they feared a reversal of gender roles. Only men were allowed to wear trousers during the time.