How can an administrator allow an org to publish a change set to another org?

How can an administrator allow an org to publish a change set to another org?
A . In the target org: Open Deployment Settings, Select the environments to allow publishing from and Move them to the Enabled list
B . In the source org: open Deployment settings, Select the environments to publish to and Move them to the enabled list
C . In the source org: Open Publish Settings, Select the checkbox next to the environment to publish to and Click Save
D . In the target org: Open Deployment Settings, Click Edit next to the source org. Select Allow Inbound Changes and Click Save

Answer: A

Explanation:

The correct way for an administrator to allow an org to publish a change set to another org is to open Deployment Settings in the target org, select the environments to allow publishing from and move them to the Enabled list. This creates a deployment connection between the source org and the target org, which allows the source org to upload change sets to the target org.

Reference: https://help.salesforce.com/s/articleView?id=sf.changesets_create_outbound.htm&type=5