Consider set S={x | x is a month in the calendar with 31 days }. Set S is described using rule method. Which of the following describes set S using roster method.
a. S={January, March, May, August, October, December}
b. S={January, March, May, July, September, October, December}
c. S={January, March, May, June, August, October, December}
d. S={January, March, May, July, August, October, December}