How is it possible to make a profit from buying and selling currency?

a. the value of currency always stays the same, but you can exchange money for currency that is more valuable to make a profit.

b. the value of currency changes over time, so you can buy a country’s currency when its value is low and sell it when it is higher.

c. the value of currency changes over time, so you can buy a country’s currency when its value is high and sell it when it is lower.

d. the value of currency is always going up, so you can buy currency, hold onto it, and then sell it later to make a profit.

Which is the best conclusion that can be drawn regarding the status of african-americans in the south in the late 1800s? a) african-americans made tremendous political, social, and economic advancements during the reconstruction era. b) passage of the 13th, 14th, and 15th amendments to the u.s. constitution guaranteed equal status and rights for all african-americans. c) the reconstruction policies enacted by the federal government were highly effective in african-american citizens transition to life after slavery. d) although african-americans had equal rights under federal law they were still economically, politically, and socially inferior to whites in the south during the reconstruction era.