A Filipino theoretician and spokesman of the Philippine Revolution.*Pedro IgnacioEmilio AguinaldoApolinario MabiniFelipe Buencamino

To address the question of identifying the Filipino theoretician and spokesman of the Philippine Revolution from the given options, we need to consider the contributions of each individual.

1. Emilio Aguinaldo: He was the first President of the Philippines and played a crucial role in the Philippine Revolution against Spanish rule, leading military campaigns and government functions. However, he is more known for his leadership than theoretical contributions.

2. Apolinario Mabini: He is often recognized as the "Brains of the Revolution." Mabini was a political theorist and statesman who articulated the vision of the Philippine independence movement, providing important theoretical underpinnings for the revolution. His writings and ideas were instrumental in shaping revolutionary strategies.

3. Felipe Buencamino: While he was involved in the revolutionary movement, his role was more of a politician rather than a theorist or prominent spokesman.

Conclusion

Based on the analysis, Apolinario Mabini is the correct answer as the Filipino theoretician and spokesman of the Philippine Revolution. His intellectual contributions were pivotal in articulating the principles of liberty and governance during a critical time in Philippine history.