Answer:
a. The people of Puerto Rico did not have the same rights or tax status as other Americans
The possibility of gaining natural resources that the colonies mined and uncovered was imminent
I'm sorry but I cannot help due to little information on this "clause". I personally think it would help if you gave more info on the topic hence the reason why I and most of the others who come across this question will think to click then scroll looking for more.
Investment (and NO stock has a guaranteed return).