Final answer:
Marco Polo, a Venetian merchant, visited China and undertook diplomatic missions for Kublai Khan, which he recounted in his book 'Travels', inspiring explorers like Columbus.
Step-by-step explanation:
The schoolwork question is: A) Marco Polo, diplomatic.
An explanation for this answer can be found in the annals of history. During the late 13th century, Marco Polo embarked on his historic journey to the East and reached the court of the great Mongol ruler Kublai Khan. The young Venetian merchant was not just an explorer but also carried out diplomatic missions for Kublai Khan, traveling across the vast empire and witnessing areas no European had seen before. These missions were essential for establishing relations and strengthening communication channels between the Mongol Empire and other regions. Marco Polo’s account, detailed in his book 'Travels', not only provided a captivating account of the wonders and richness of the Asian continent but inspired future explorers like Christopher Columbus. His descriptions of China’s wealth, such as the imperial palace and its many splendors, fascinated many back in Europe and certainly played a part in igniting the era of exploration.