select the word from the list that best fits the definition

periods of increased glaciation

a. ice ages
b. rings
c. volcanic eruptions
d. sun spots
e. fossils

Gabby calls her cousin who lives in a different state and tells her to turn her radio to channel 98.7 so they can listen to their favorite song that is playing. her cousin turns her radio to 98.7, but does not hear the same song gabby hears. which most likely explains why?