Final answer:
The number of character references required to apply for a license varies depending on the specific licensing requirements and regulations.
Step-by-step explanation:
To apply for a license, the number of character references required can vary depending on the specific licensing requirements and regulations of the jurisdiction. It is best to consult the licensing authority or the licensing application guidelines to determine the exact number of character references needed. In some cases, only one character reference may be required, while in other cases, two, three, or even four character references may be necessary.