• In the General Info section
• In the Creatives section
• In the Account Summary page
• In the Details section of the selected asset

The correct answer is: In the Details section of the selected asset

Explanation: The dynamic path is found in the detail section of selected assets. Open the asset in Asset Library. In the “Details” pane, click the “Dynamic Path” field.

Read more here:https://support.google.com/richmedia/answer/6011700