Final answer:
Muslims must abstain from all food and drink from dawn to sundown during fasting days in Ramadan, which includes no water, making b) No food or water the correct answer.
Step-by-step explanation:
During fasting days, specifically in the holy month of Ramadan, Muslims are required to fast from dawn to sundown. This includes abstaining from all food and drink, which means the correct answer is b) No food or water. As part of the fast, they do not consume any sustenance; this includes water, milk, fruits, or bread during the daylight hours.
Upon the arrival of sundown, Muslims are permitted to break their fast, often with a meal that includes a variety of foods and drinks. They traditionally start with dates and water followed by a larger meal that helps to rehydrate and restore energy levels for the following day's fast. The practice of fasting during Ramadan is one of the Five Pillars of Islam, highlighting its significance in the Muslim faith.