Which of the following describes Google Translate's functionality?

Google Translate's functionality is characterized by its requirement for a constant internet connection to work effectively. This is because the translation process relies heavily on cloud-based algorithms and databases that access vast amounts of linguistic information. When you enter text for translation, it connects to Google's servers, processes the request, and retrieves the most accurate translations. Without an internet connection, Google Translate's functionality is severely limited, as it cannot access the latest translation data or update its language models.

The other options do not accurately represent the comprehensive capabilities of Google Translate. For instance, while it is true that Google Translate primarily functions online, it does offer some offline functionalities through mobile apps, allowing users to download specific languages for translation without needing internet access. Also, Google Translate can translate not only text but also whole webpages, making it a versatile tool for users who want to understand content in different languages. Moreover, it supports a vast array of language pairs, providing translations across many languages instead of being limited to specific pairs. Lastly, Google Translate is primarily a web service but does have mobile app versions and a Chrome extension rather than a distinct desktop application.