
Explanation/Reference:
Explanation:
Step 1. To be able to share documents, we first need to enable sharing at the top level, the Tenant.
The question states: "You plan to share documents with users by emailing document links. Users must not be required to sign in to the subsite to download the documents".
To do this, we need to select the following sharing option:
"Allow both external users who accept sharing invitations and guest links".
Step 2. The second step is to allow sharing at the Site Collection level.
Again, we need to configure the following sharing option:
"Allow both external users who accept sharing invitations and guest links".
Step 3. The final step after sharing has been enabled is to share the required documents.
References:
https://support.office.com/en-in/article/Manage-external-sharing-for-your-SharePoint-Online-environment- c8a462eb-0723-4b0b-8d0a-70feafe4be85