What is the name of the diacritical mark used in French on the letter 'c' to indicate it is pronounced as /s/ before 'a', 'o', or 'u'?

• A Accent aigu
• B Cedille (cedilla) ✓
• C Accent grave
• D Accent circonflexe

The cedille (c) appears only under the letter 'c' in French, as in 'francais' or 'garcon'.