Answer: I think they never said they could... but I don't know history-
Explanation: The Open Door policy was a statement of principles initiated by the United States in 1899 and 1900. It called for protection of equal privileges for all countries trading with China and for the support of Chinese territorial and administrative integrity. The main reason the United States announced the Open Door Policy is to ensure that U.S. businesses could operate in China. The backlash against foreigners led to widespread killings of missionaries working in China and an increase in nationalist feelings among the Chinese. The Boxer Rebellion was one of the most important events caused by this anti-foreign movement.
Many forerunners and founding fathers of America hailed from the East, American westward expansion was considered to be the hallmark because of many reasons. It all started when Thomas Jefferson bought Louisianan territory from France, he believed that for America to become a powerful block in the world, its west ward expansion is necessary.
There was vast and cheap availability of fertile lands in the west which could be used for erecting major factories and create employment opportunities that were mostly low paid in the east due to European restrictions.
Gold Rush in Oregon was an alluring factor for westward expansion. Environment in the west was compliant and the land was productive.
Scientific innovations created jobs for Americans by that product going nation-wide. What that means, is that when someone's scientific innovation went nation wide, or even global, they wold have to build factories, and places to make and sell that product. With those new buildings, comes new jobs, and he economy is improved. Take Thomas Edison for example. He commercialized the light bulb. When it became popular, he build huge power plants to build his product. He had to have people build his product inside the power plant. Those new jobs were filled by Americans.
There was an atomic bomb and a number of people were injured and died
Answer:
B) Mine explosions, fire, flu, and loss of young men to war all contributed to the high death toll found in Dawson.