Given the name of the phobia:

Fear of being dirty

Automysophobia

The correct answer is ☀ Automysophobia. Automysophobia is the fear of being dirty. It is an irrational or disproportionate fear that can cause people to avoid anything that might make them dirty, such as touching dirt or germs, or to experience severe anxiety when they do come into contact with dirt or germs.

The other phobias you mentioned are:

• Carcinophobia is the fear of cancer.
• Chromophobia is the fear of color.
• Archnophobia is the fear of spiders.