Alliyah and her group gathered the data of their studies, the range of demographic profile in terms of age is 20-40 years old. On the developed tool, the ages ranges are provided as the following: 20-25; 25-30; 30-35; 35-40. What problem is evident in this set of responses related to the question seeking to know a person's current age? Question 8Answer a. There is no problem with the above set of response categories. b. The categories are written in a closed-ended format. c. The categories are exhausted. d. The categories are not mutually exclusive