Hunter had learned to preserve seeds for use and Kevin wanted to learn so, 
OPTIONS:
- Hunter asked them how to do it.
- Kevin asked them how to do it.
Kevin asked them how to do it.

Care was taken to reduce the infections and improve patients' health, the 
OPTIONS:
- health eradicated.
- infections eradicated.
infections eradicated.

Rebecca asked Erin to put something different on, because 
OPTIONS:
- Rebecca preferred more complex music.
- Erin preferred more complex music.
Rebecca preferred more complex music.