In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".

Nick asked Christopher how to focus a camera, since _ had never been able to get the hang of that. (A) Nick (B) Christopher
A

Tanya was more likely to get better results when making bread than Monica because _ had a lot of baking experience. (A) Tanya (B) Monica
A

Eve found that the plants in the greenhouse thrived through the frost while the ones in the garden died, because the _ was colder. (A) greenhouse (B) garden

B