answer
35 mm format. A roll of Kodak 35 mm film for cameras. The so-called 35 mm photographic format measures 24×36 mm. It is named for the 35 mm width of 135 film. A 35 mm format "full frame" digital image sensor (left, in green) is revealed inside the mirror box of a Canon DSLR camera.
Explanation:
The scientific answer to this question is eye and music lol
Intensify in the brightness or dullness of a color. Intensity refers to the purity of a Hue. Intensity is also known as the Chroma or Saturation. A Hue is the “color” name. Use red as an example, it represents the specific wavelength of visible light. The Hues in the Color Spectrum are red, orange, yellow, green, blue, indigo, and violet.
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I would say b. but i am probably wrong so I wouldn't rely on my response