Problem: The woman bought a shell to put in the aquarium, because the

My choice: shell looked decorative.

Problem: Julia went to the park with her dog and made sure to bring a jacket instead of an overcoat because the

My choice: overcoat was not needed.

Problem: I am reorganizing the kitchen and decided to sell the crockpot instead of the blender because the

My choice: crockpot will used less often.

Problem: Amy likes pretending to be a ninja, and Betty feels too old for that, so

My choice:
Amy is likely the kid.