Which statements about guardrails are correct? $($Select TWO.$)$

When developers create a new landing zone, all guardrails are turned on by default.

Guardrails let developers to express policy intentions and are categorized according to their behavior and guidance.

AWS Control Tower provides three categories of guidance: mandatory, strongly recommended, and elective guardrails.

By default, detective, quardralls are automatically turned on when a policy violation is detected' by AWS config.

Guardralls are implemented with AWS Config rules and AWS Lambda functions.