You are tasked with deploying a new application across multiple environments $($development$,$ testing, production$)$ with the least amount of manual effort and the highest consistency.

Which Infrastructure as Code strategy would BEST achieve this goal?

answer

Use declarative IaC tools to define the desired state of the infrastructure for each environment and let the tool handle the provisioning.

Hire a team of engineers to monitor and manually adjust each environment as needed.

Manually configure the development environment and use snapshots to replicate the configuration to testing and production.

Write a series of imperative scripts for each environment and execute them in sequence manually.