Final answer:
Research on motivation and age suggests that younger adults are generally more impulsive, and older adults are more cautious, an aspect reflected in their voting and employment patterns. option a is the correct answer.
Step-by-step explanation:
According to research findings on motivation and age, younger adults tend to be more impulsive while older adults tend to be more cautious.
This observation aligns with voting behaviors, where younger adults typically vote less often compared to older adults. Moreover, in the realm of employment, younger workers exhibit higher levels of unemployment due to frequent job changes and lower levels of felt responsibility, whereas middle-aged and elderly workers show lower unemployment rates due to higher responsibility and retirement, respectively.
Therefore, the mentioned correct option in the final answer is a. impulsive; cautious.