Problem: How does the sentence end?

i replaced the potatoes with the green peas during my grocery shopping because the 
OPTIONS:
- potatoes were affordable.
- green peas were affordable.
Answer: green peas were affordable.
sentence: Samantha gave a special ice cream treat to Betty, so  OPTIONS:
- Samantha walked around with a full hand.
- Betty walked around with a full hand.
complete: Betty walked around with a full hand.
The home gardener wanted to put the plant in their new pot but the 
OPTIONS:
- plant was too tall.
- pot was too tall.
plant was too tall.
Input: Continue writing.

Aaron's dog followed commands while Christopher's dog barked throughout the night because 
OPTIONS:
- Aaron had a dog that was well trained.
- Christopher had a dog that was well trained.

Continued: Aaron had a dog that was well trained.
Story needs to be completed:
Tim went to ride his motorbike down the coast this morning and checked the tire pressure which was low enough to not ride the 
OPTIONS:
- motorbike down the coast today.
- coast down the coast today.

My choice:
motorbike down the coast today.
Problem: How does the sentence end?

Nelson told Craig that he volunteers at a nonprofit to stop horse slaughter.  
OPTIONS:
- Nelson is generous.
- Craig is generous.
Answer:
Nelson is generous.