Assuming you are talking about Homonyms, it is when two or more words look and sound the same but mean two different things. Some examples include,
Two, and Too. One is the number 2 and the other means as well.
Witch, and Which. One is a fictional species and the other is a word for comparing two things.
1. It is the afternoon (off the banks of noon)
2. She notices the bird eating and drinking
3. Rapid eyes, velvet head, frightened beads
4. The bird did not notice the person at first
Sorry this is all I can figure out
Answer: Cat owners should be forced to keep their cats indoors because cats overhunt bird species.
Explanation: This one is more logical and has a reasoning rather than b.