Explanation:

The maximum number of working hours for an adult worker in a week is often regulated by labor laws, which aim to protect workers from excessive hours and ensure fair working conditions:

- Option 1: 35 hours - While sometimes considered for part-time or specific cases, it's not the standard maximum.

- Option 2: 40 hours - Commonly seen as a standard full-time work week in some countries but often does not represent the legal maximum under labor laws.

- Option 3: 45 hours - May apply to certain specific contexts or agreements.

- Option 4: 48 hours - This is the correct maximum number of hours an adult worker is typically allowed to work per week in many jurisdictions, reflecting traditional labor laws. Correct Answer