Nick has a badly dislocated shoulder and asks for Robert's help, because 
OPTIONS:
- Nick is doctor.
- Robert is doctor.
Robert is doctor.

Sarah felt more affection towards felines than canines than Tanya because 
OPTIONS:
- Sarah grew up with dogs.
- Tanya grew up with dogs.
Tanya grew up with dogs.

It was love at first sight for Christopher but Kenneth did not feel the same way, and soon 
OPTIONS:
- Christopher became obsessed.
- Kenneth became obsessed.
Christopher became obsessed.