I'm reading tips and tricks for an exam I'm going to take I and saw the following paragraph:
Be careful with “should vs. could”: e.g the sentence “Product Owner could attend the Daily Scrum” is true, while the sentence “Product Owner should attend the Daily Scrum” is false.
Is it gramatically correct? Why it's not "Product Onwer can attend the Daily Scrum"? If this is correct than what is the difference in meaning of the sentence?