Final answer:
Martin Luther's 95 Theses were originally written in Latin, targeting the church officials and scholars, to initiate a theological debate within the Church for reform.
Step-by-step explanation:
Martin Luther wrote his 95 theses in Latin, primarily aiming his message at the church officials and scholars of the time. As Latin was the scholarly language of the era, especially within the context of the Catholic Church, his work was intended for those who could best understand and engage with the theological debate he hoped to inspire. This approach suggests that Luther's initial intent was to initiate reform within the Church rather than appeal directly to the general populace. However, the eventual translation of the theses into German and their dissemination through the printing press enabled his ideas to reach a broader audience and contributed to the Protestant Reformation.