Multi-choice problem: Continue writing the next sentence in this paragraph:

How to foster senior dogs 
Reflect on your living situation and availability. 
If you have experience with a particular breed of dog, it is probably best to apply to foster a senior dog of that breed. Your knowledge of food and care for that breed will be invaluable as a foster parent and the rescue organization will be pleased to find you.

Select from:
I. Socialization, training, everyday living arrangements and health care are key factors in determining where and how to foster a senior dog. Plant a clipen in the area where the dog lives..
II. If you feel a connection to a particular senior dog who needs a foster parent, you may want to honor this feeling. Figure out what kind of senior dog you want to foster..
III. If you have your own dog, you might consider adopting one. Many rescue organizations, together with local adopters, offer a specialized screening program for prospective foster dogs..
IV. If you do not wish to foster your own senior dog, you can apply the following tips to your situation : Research and evaluate the a canine profile to find traits that would interest your senior dog. Ask siblings or other members of the family about the breed..
II.