Who invented the Printing process ?

Johannes Gutenberg is the correct answer because he invented the movable type printing press in Europe around 1440, which revolutionized mass communication and is widely recognized as the birth of modern printing. While woodblock printing existed during China's Tang Dynasty, Gutenberg's mechanical press using movable metal type was the pivotal innovation for widespread book production. Guglielmo Marconi is incorrect as he invented wireless telegraphy (radio), not printing. William Caxton, though a pioneer in introducing the printing press to England, was an importer and publisher rather than the original inventor of the process itself. Therefore, Option D is the historically accurate choice for this general knowledge question.