Evaluate the suitability of Google Ads as a primary user growth channel for the following business scenarios. Decide whether Google Ads is a suitable primary channel based on the provided business context:
- Scenario I: A software company offers a utility tool for which potential customers actively search online.
- Scenario II: A fashion brand relies heavily on visual appeal and lifestyle association to attract customers.
- Scenario III: An e-commerce business has a high Lifetime Value (LTV) to Customer Acquisition Cost (CAC) ratio in its growth model.
Determine the suitability of Google Ads for each scenario.