Why did the middle class, especially merchants, tend to support the strengthening of central royal power?
a. they believed that a more unified government meant a more stable economic system
b. they believed that a more unified government meant a more accountable ruler
c. they believed that a more unified government meant a more democratic society
d. they believed that a more unified government meant more flexible cultural norms

the answer is: must pay taxes on profits

since it is considered as a part of your income, profits from investments is eligible for tax payment.

the tax from your investment could be influenced by how long you decided to sell it. united states promotes keeping your investment for long term period. so, the tax rate for investments that you sell in less than one year is typically higher compared to investments that you sell in more than one year period.

no one really purchased it themselves, it was all america, they had debates etc.

not sure but thinking i'ts cause the government was broke. not sure