Which of the following is not a necessary step to effectively prioritize goals?
a. determining a set of tasks for each goal
b. deciding which goals are most important
c. outlining goals
d. organizing goals into categories

If you want to prioritize goals, you definitely need to know what your goals are, so you need to list them first, and list their characteristics, including their importance (options c)and b)

It would also be useful to divided them in categories (option d).

So the correct answer is the remaining option, a!