E3B09 : At what time of year is sporadic-E propagation most likely to occur?
A
Around the solstices, especially the summer solstice
B
Around the solstices, especially the winter solstice
C
Around the equinoxes, especially the spring equinox
D
Around the equinoxes, especially the fall equinox
Correct Answer: Around the solstices, especially the summer solstice