Problem: How does the sentence end?

Air travel pleases Nick, which isn't the case for Hunter, as a result of 
OPTIONS:
- Nick getting air sickness.
- Hunter getting air sickness.
Answer: Hunter getting air sickness.
sentence: Carrie's accent is very heavy, whereas Mary doesn't have one.  OPTIONS:
- Carrie was born in India.
- Mary was born in India.
complete: Carrie was born in India.
She filed her nails but split two emery boards because the 
OPTIONS:
- nails were so strong.
- emery boards were so strong.
nails were so strong.
Input: Continue writing.

John was in the wild looking for the softest dirt. He found some dirt but also found sand he preferred instead since the 
OPTIONS:
- dirt was so coarse.
- sand was so coarse.

Continued: dirt was so coarse.
Story needs to be completed:
Matt was running late for a vet appointment so he got on a train and luckily the 
OPTIONS:
- appointment was fast.
- train was fast.

My choice:
train was fast.
Problem: How does the sentence end?

Sarah went to the hairdresser, she got a new hair cut for shorter length but no color. The 
OPTIONS:
- color was changed.
- length was changed.
Answer:
length was changed.