No answer choices provided but it’s because income is how much you are making before tax. Also, wealth means an abundance of currency so unless you are making lots of money, you dont have wealth. Hope this helps.
A because it gives historical details
Answer:
a) The decreasing importance of the caste system
Explanation:
According to Al-Beruni, the difference population of the Hindus and Muslims was significant which made them have more respect for other people.
Therefore, the part of India's history that most directly supports al-Beruni's claim about how the Hindu culture he observed differed from earlier culture in India is the decreasing importance of the caste system.