Final answer:
The correct answer is a) Before and after storage.
Step-by-step explanation:
The subject of this question is Science. The question is asking about when a package should be visually inspected for integrity. The correct answer is a) Before and after storage. Before storing a package, it should be visually inspected to ensure that it is intact. After storage, it should be inspected again to check for any damage or tampering. This practice helps ensure the quality and safety of the package contents.