There are four steps in solving one's personal financial challenges:
1. considering opportunity costs
2. assessing risks and returns
3. setting short- and long-term goals
4. assessing needs and wants
Which of these is the correct order of these steps?

a) 2, 3, 1, 4
b) 1, 2, 3, 4
c) 4, 1, 2, 3
d) 3.1, 4, 2