An Important Principle in One of the Theories of the Electrification

Multiple Choice

An important principle in one of the theories of the electrification of clouds is that ____.

A) there is a net transfer of negative ions from a warmer object to a colder object
B) supercooled water is always negatively charged
C) ice crystals are always negatively charged
D) there is a net transfer of positive ions from a warmer object to a colder object
E) raindrops are always positively charged