Which of the following countries did not have one of the Seven Ancient Wonders of the World?

The Seven Wonders of the World or the Seven Wonders of the Ancient World is a list of remarkable constructions of classical antiquity given by various authors in guidebooks or poems popular among ancient Hellenic tourists. Although the list, in its current form, did not stabilise until the Renaissance, the first such lists of seven wonders date from the 2nd–1st century BC. The original list inspired innumerable versions through the ages, often listing seven entries. Of the original Seven Wonders, only one—the Great Pyramid of Giza, oldest of the ancient wonders—remains relatively intact. The Colossus of Rhodes, the Lighthouse of Alexandria, the Mausoleum at Halicarnassus, the Temple of Artemis and the Statue of Zeus were all destroyed. The location and ultimate fate of the Hanging Gardens are unknown, and there is speculation that they may not have existed at all.

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.