Final answer:
The sentence indicates that the factory's products will be sold internationally, as they're mentioned to be distributed up the Euphrates and across the veldt, signifying a global reach. The correct answer is option D.
Step-by-step explanation:
The sentence implies that the goods produced by the factory will be sold around the world. This is evidenced by the mention that the goods would be sold up the Euphrates and across the veldt, indicating an international distribution that spans regions from the Middle East to Southern Africa. This description reflects the global marketplace we live in, where items such as cell phones, athletic shoes, fresh produce, and vehicles are often manufactured in one country and sold in many others.