"The first modem mass medium, radio made America into a land of listeners, entertaining and educating, angering and delighting, and joining every age and class into a common culture. Radio created national crazes across America, taught Americans new ways to talk and think, and sold them products they
never knew they needed. Radio brought them the world."
-Source: Tom Lewis, historian, "A Godlike Presence': The Impact of Radio on the 1920s and 1930s." 1992
The effects of radio described in the excerpt is most similar to the effects caused by which of the following improvements?

i think its the outcome of people's preferences.

a they donate money to humanitarian causes

c   they volunteer to alleviate suffering

d   they blame all muslims for not being able to keep their fellow muslims in line.

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.