Which of the following can be identified as a cause of siddhartha gautama's dissatisfaction with hinduism?
a. the unjust effects of the caste system
b. his wife's refusal to pay him a dowry
c. his father's defeat in a major battle with the hindu army
d. his belief that the untouchables could never be reincarnated into a higher caste

The answer is letter a.  The unjust effects of the caste system.  What he intended was not to find a new religion but to reform Hinduism.  He believed that the caste system had produced division where the lower the status, the more prejudice the attitude towards a certain class in society.  Apart from that, he was not satisfied with some of the methods of Hinduism where he failed to gain enlightenment.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

"they had a large area of land that they owned."