Final answer:
A long-term goal taking shorter-term goals, each taking years to achieve can be broken down into 6-year and 12-year shorter-term goals.
Step-by-step explanation:
A long-term goal taking shorter-term goals, each taking years to achieve can be broken down into: D) 6; 12.
Breaking down long-term goals into shorter-term goals helps to make them more manageable and achievable. In this case, the shorter-term goals can be divided into 6-year intervals, with each interval having another set of 12-year goals.
For example, if the long-term goal is to complete a college degree in 12 years, the shorter-term goals could be completing certain coursework or earning specific credits within 6-year intervals.