Diana completes an experiment of spinning a three-colored spinner 15 times. She expected to get a probability of 1/3 for each color, but her numbers were really off. She got 0% probability for red, 60% for green, and 40% for blue. How could she get her experimental probability closer to her theoretical probability?

1. She needs to dice instead.
2. She could spin a different spinner.
3. She should complete more trials.
4. She needs to spin fewer times.