Simply explain whether the theory given in each passage is testable, simple, and conservative and why?

1. Phenomenon: Yolanda awoke one morning and remembered having a strange dream. She dreamed that she was being chased by zombies through her own back yard. The dream seemed extremely vivid. Later in the day, she noticed some scratches on her ankle. She didn`t know how they got there. Theory: Yolanda was chased by zombies.
2. Phenomenon: Christopher and Andrew are twins. They often seem to know what each other is thinking and can finish each other`s sentences. Many times they report knowing what the other is up to, even when miles apart. Theory: The twins share a special psychic connection.
3. Phenomenon: In 1917 in Cottingley, England, three little girls claimed to have taken photos of fairies who played with them in the garden. The photos showed the girls in the garden with what appeared to be tiny fairies dancing around them. (The 1997 movie Fairy Tale was about the girls and their story.) Theory: Fairies really do exist, and the girls photographed them.