What is the general purpose of DocuSign envelopes?

The general purpose of DocuSign envelopes is to contain documents that require signatures. In the DocuSign system, envelopes serve as containers that not only hold the documents needing signatures but also track the status of each document as it moves through the signing process. Each envelope can include multiple documents and specify the order in which recipients should sign or review the documents. Additionally, envelopes facilitate the management of signing workflows, ensuring that all parties are notified when their action is needed. This integral function of storing and managing documents designated for electronic signatures is what makes this choice the correct one.

The other options do not align with the primary functionality of DocuSign envelopes. They do not serve to store user credentials or hold training videos, nor are they meant solely for general collaboration without the context of signatures.