Network distribution can be specified at the campaign level

Which can be specified at the campaign level?

• Destination URLs
• Billing preferences
• Ad text
• Network distribution

The correct answer is:

• Network distribution

Explanation: A set of ad groups (ads, keywords, and bids) that share a budget, location targeting, and other settings.

You can read more here: https://support.google.com/partners/answer/6304?hl=en