Write each set in the indicated form. If you need to use "..." to indicate a pattern, make sure to list at least four elements of the set. As you answer below, remember that the natural numbers are just the counting numbers. This means that 0 is not a natural number, and negative numbers are not natural numbers either. (a) Descriptive form: The set of natural numbers greater than or equal to 4. Roster form: (b) Roster form: (3, 5, 7, 9} Descriptive form: (Choose one) The set of odd natural numbers less than or equal to 9. The set of odd natural numbers greater than or equal to 3 and less than or equal to 9. The set of natural numbers greater than or equal to 3 and less than or equal to 9. The set of positive multiples of 5 that are greater than or equal to 10. X