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16. Describe a line spectrum like that seen by viewing the mercury vapor lights using a spectroscope:
A) A continuous rainbow with red, orange, yellow, green, blue, violet
B) A series of fine lines at specific frequencies separated by black spaces
C) A continuous rainbow with red, yellow, orange, green, blue, violet
D) A continuous rainbow with violet, blue, green, yellow, orange, red
E) An infrared spectrum