Answer:
It did not rely on enslaved laborers.
Explanation:
This is because they did have slaves as the lowest class, but they did not rely on them to build things. The only times they relied on the slaves was when they needed extra soldiers for wars, or needed something built urgently.
Probably B.
If I’m wrong then I’m sorry
The Sharpeville Massacre.
Answer: The technological race between the USA and the Soviet Union wasn't just on Earth. It also reached into space in what came to be known as the "Space Race". Both sides competed against each other to explore inner space. The USSR started the Race by sending the first ever satellite, "Sputnik" into orbit.