Which provides the best example of someone negatively affecting their own time management?

A. Anita welcomes unscheduled visits throughout the day and enjoys them as surprise breaks.
B. Brix sets specific personal goals for each week that are separate from the "to do" list.
C. Oden sets aside a few hours each month to document how long tasks usually take to complete.
D. Samir thinks the term paper is going to take 10 hours but budgets for 12 instead.​