Ralph, a staff member at Camp Bow Wow, just found out that his boss wants him to work 6.5 hours a day, 6 days a week, instead of 8 hours a day, 5 days a week. Ralph is not happy about this change. He's afraid that his income will go down with the shorter workdays, because he might be asked to not to work on certain days. Ralph's resistance to change is most likely due to which of the following factors?

a. Economic factors

b. Lack of awareness

c. Habit

d. Social factors