One of the most lasting contributions to China by the Han dynasty was the ____ On it, the Chinese received ____ and traded ____

I need help with this, I've been stuck on it for awhile now.

100%

.A
Silk road, horses and then silk
.B
Promise

1.A

2. Silk Road, Horses, Silk
3.B

5gx that was eight btw 100%

1. Dao

Silk road
civil service test
Great Wall
2. horses
iron
gunpowder
bronze
3. Buddhism
wool
silk
ivory

Those are my choices (in order).

What are your choices? What do you think the answer is?

she gave up

look at my mane