Problem: How does the sentence end?

Lawrence smoked cigarettes and Craig did not smoke, so 
OPTIONS:
- Lawrence had a very distinctive smoky smell.
- Craig had a very distinctive smoky smell.
Answer: Lawrence had a very distinctive smoky smell.

Problem: How does the sentence end?

Betty is at the store buying products where Sarah has worked for ten years, 
OPTIONS:
- Betty is selling goods.
- Sarah is selling goods.
Answer: Sarah is selling goods.

Problem: How does the sentence end?

She had an old wooden board and the new plastic board. When she chopped the garlic, she chopped it on the 
OPTIONS:
- plastic board although it was tarnished.
- wooden board although it was tarnished.
Answer: wooden board although it was tarnished.

Problem: How does the sentence end?

Betty bought Mary's half of the family house because 
OPTIONS:
- Betty wanted to keep the house in the family.
- Mary wanted to keep the house in the family.
Answer:
Betty wanted to keep the house in the family.