Which of these best explains why shi huangdi (259 - 210 bce) ordered the burning of all books, except for those on medicine, divination, agriculture, and forestry, and ordered the live burial of more than 400 alchemists?

a) ancestor worship required him to ancestors in the afterlife.
b) he was weeding out scholars and writing that might threaten his power.
c) the public became angry during a time of family and scapegoated scholars.
d) he offered a sacrifice to the gods to seek balance and harmony during instability.

a direct vote in which an entire electorate is invited to vote on a particular proposal. this may result in the adoption of a new law.  

angel island immigration station was an immigration station located in san francisco bay which worked from 1910 to 1940. the majority of immigrants that got there were from the asian hemisphere, specifically from china, japan, russia, and south asia, being china the country from where more people arrived.

the number of foreigners arriving at it took the attention of americans who feared the new arrivals would take their jobs. the work opportunities were not abundant due to the economic comedown of 1870 and the asians, as newcomers, were willing to work for cheaper wages. soon they started to be seen as a threat, which led to an increased discrimination against the chinese - the biggest ethnicity arrived at this station until 1915 when japanese immigrants outnumbered them - being considered as unsuitable americans hence their looks and social situation.

at the station, the immigrant's detention may vary depending on how long the interrogation process took: it could be weeks, months, or even years.

finally, in 1940 an explosion destroyed administration building located on the island, so the united states government decided to stop the process.