What attributes can a Google Calendar possess?

A Google Calendar can have several useful attributes that enhance its functionality and user experience. One key attribute is the distinct color option, which allows users to assign different colors to various calendars or events. This color coding can help users quickly identify calendar categories at a glance. Additionally, a calendar can have a default notification reminder, ensuring that users receive timely alerts for upcoming events and stays organized. Lastly, a unique name is essential for each calendar, making it easier for users to differentiate between their various calendars, especially when managing multiple schedules.

The other choices include attributes that either don't apply directly to Google Calendar or represent features not inherent to the service. For example, limitations imposed on background pictures or notification sounds are not commonplace attributes associated with a Google Calendar. Similarly, options like custom font styles and automated responses are more relevant to email clients or messaging platforms rather than calendar applications. Finally, while shared calendars, color coding, and integration tools are indeed features of Google Calendar, they don't align with the simpler, more foundational qualities represented in the correct choice.