Evaluate the following scenarios to determine which are most appropriate for utilizing Partnership-Based Push Channels:
- Scenario I: A tech company seeking to promote its new software product in a highly specialized market.
- Scenario II: A fast-food chain looking to expand its reach in a general consumer market.
- Scenario III: A fitness brand aiming to connect with health-conscious consumers through a well-known wellness influencer.
- Scenario IV: An educational startup wanting to promote its courses through an affiliate marketing program.
Identify the scenario(s) where Partnership-Based Push Channels are most suitable.