A) The Netherlands is correct
The answer should be C because Germany shot down a U-boat in the pacific in world war I
Listen carefully to them and ask for help if you need to.
Answer:
B. to keep invaders out
Explanation:
The wall was built to help keep out northern invaders like the Mongols. Smaller walls had been built over the years, but the first Emperor of China, Qin Shi Huang, decided that he wanted a single giant wall to protect his northern borders.
