Which one of the following statements regarding the quality of requirements is MOST correct?

Vague or ambiguous requirements may lead to misunderstandings both during implementation and testing.

In Agile development lifecycle models, requirement engineering becomes less important due to the product owner role.

INVEST is a technique that ensure the quality of user stories or requirements, thus replacing regular reviews.

Testers may complete unclear requirements by assumptions, as long as they discuss those assumptions with at least one stakeholder.