Implement only secure coding practices and conduct code reviews, focusing solely on reducing initial development costs.

Integrate security testing and vulnerability scanning into the CI/CD pipeline, but limit these activities to post-deployment to save on operational costs.

Adopt a DevSecOps approach, integrating security into every phase of the SDLC, including planning, development, testing, deployment, and operations, to ensure compliance and scalability.

All of the above strategies are necessary to meet the objectives of compliance, scalability, and cost-effectiveness in a secure application development and deployment solution.