Answer:
it is 3 which is constructive
If you do not have future goals you will not have something to work twards. Inadvertently people are always making goals like finishing homework before watching tv, but specific knowledge biased goals help you achieve things for the long term.
The correct answer is - The children’s innocence touches the volunteers’ hearts.
Pathos as a rhetorical appeal should affect your emotions by using poignant themes such as the children's innocence. The other options give you facts rather than feelings, and are thus using ethos rather than pathos. By using pathos, you want to make your audience feel things and therefore agree with your points.