The correct answer is D) all of the above.
All of these were achievements that were made during the Ming dynasty: Novels, encyclopedias, and dictionaries were printed, sea trips to nations in Africa were completed, and new crops from the Americas were introduced.
The Ming Dynasty was very successful and lived a period called the Golden Age. During this Dynasty, China had great accomplishments such as the sea trips of Admiral Sheng to the Indian Ocean, major reparations and completion of the Great Wall of China, it was a prosperous period for printing dictionaries, novels, and encyclopedias; medicene men wrote an important encyclopedia about medicine, there were also great constructions as the Porcelain Pagoda and the Forbidden City, major agriculture advancements brought by the Columbian exchange.