Choose the noun which is only used in the singular form: Выберите один ответ: • a, colour O b. cable O c. coffee • O d. cigarette

The noun that is only used in the singular form from the options provided is c. coffee.

While "coffee" can refer to different types or servings, it does not have a plural form like "coffees" commonly used in standard English. The other options (colour, cable, cigarette) can all be used in both singular and plural forms.