Multi-select problem: How does the next paragraph end?

How to spot signs of illness in a canary
Note any decrease in activity.
Canaries are active birds that enjoy flying around in their cages. If your canary has stopped flying or if they are spending long periods of time on their perch, you may want to take them to a vet.

Available choices:
(I) If they no longer fly around, they may be sick. As you treat your canary for illness, it is a good idea to figure out what to do.
(II) A sick canary may tuck their head under their wings or sleep near their food bowl. Listen to the sounds that they make.
(III) Signs of illness in a canary may include : Lethargy general feather loss Determine whether a canary is dead. A canary that appears to lack feathers could be dead.
(IV) If they have suffered from serious injury, seek medical attention immediately. Canaries move about a lot during winter time.
(II)