Final answer:
Dante's political exile and Beatrice's death had a significant influence on his writing of the Divine Comedy.
Step-by-step explanation:
Dante's writing of the Divine Comedy was influenced by significant life events such as his political exile and Beatrice's death. These experiences had a profound impact on his worldview and shaped the themes and symbolism found in the Divine Comedy. Option a) Dante's political exile and Beatrice's death is the correct answer.