To answer this question, let's go through each option to understand why it is correct or incorrect:
Option A) 1 - This option is incorrect because more than one month has 28 days. February, for example, has 28 days in common years and 29 days in leap years.
Option B) 0 - This option is incorrect because there is at least one month that has 28 days, which is February in common years.
Option C) 6 - This option is incorrect because there are more than six months that have 28 days. February has 28 days in common years, and the other months of the year also have 28 days.
Option D) All the months - This option is correct because all months have at least 28 days. February has 28 days in common years and 29 days in leap years, and the rest of the months have 28, 30, or 31 days.
The correct answer is D. All the months. This option is correct because all months have 28 days or more.