How can "assurance competence" contribute to the level of assurance provided?

It is solely based on the assurance provider's credentials and ensures the highest level of assurance

It is determined by the number of years the assurance provider has been in the industry and ensures high levels of assurance

A greater degree of it allows the assurance provider to use sophisticated, professional, and structured techniques to evaluate the subject matter, resulting in a higher level of assurance

It is only relevant for external audits and does not apply to internal assurance activities and level of assurance