One Chemical Element That Plays a Major Role in the Coloring

Multiple Choice

One chemical element that plays a major role in the coloring and chemistry of the Venusian atmosphere and clouds, and is suspected of coming from volcanic eruptions, is

A) nitrogen (as gas) , nitric oxide, and nitric acid droplets.
B) chlorine (as gas) , hydrogen chloride, and hydrochloric acid droplets.
C) iron (as red dust) , iron oxides, and iron sulfides.
D) sulfur (as dust) , sulfur dioxide, and sulfuric acid droplets.