Answer:
A tiny cat named Tiny sits all day in the window and watches people pass by.
Explanation:
Select the sentence with an appositive phrase and a relative pronoun.
A tiny cat named Tiny sits all day in the window and watches people pass by.
The cat, which is a Calico, sits in the window all day.
Tiny, a Calico cat, is a close watcher of all who pass by.
Tiny, a fierce people-watcher, is her cat that is new.