A) yes- definitely! many mental disorders are genetically motivated
b) yes! a mental disorder can be a result of for example child abuse
so we already see that d. must be the correct answer.
As for physical factors, I think head trauma could be a good example.
Answer:
Nepal is called mountainous country because it is situated near the Himalayan range which varies from North India, Nepal and South China.
It made them more important and independent people in society. This was good for them because they needed to act on their own while their husbands and sons were off fighting in a war.
B because when they make tools they make multiple.