the right granted to conquistadors to demand taxes or labor from Native Americans living on the land?

where are the answer choices

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.

the answer would more than likely a.)falling crop prices  

hope the answer is right and ,either way have a nice day.

the answer is b! (apex)