Answer:
1. Your interest is important where you have burning desire to add value.
2. Your skills, background knowledge versus your interest and societal need.
3. Level and type of research-Under-graduate, Graduate student etc or just research
4. Availability of resources including Experienced Supervisor or Co-investigator, facilities/funds/Data/instrument among others
Explanation:
The convoy system is the system of employing naval protection for merchants or troops. That means that the enemy who would want to damage the other side by cutting off their supplies would have to face more resistance.
This system was especially successful in the First World War, and it was said to contribute greatly to winning, as it was the German strategy to cut their enemies off from possible suplies (such as from the US).
The two main kinds of slavery were indentured and chattel.
Indentured slavery first arrived in America in the decade following the settlement of Jamestown by Virginia Company in 1607. The idea of indentured servitude was born of a need for cheap labor. The earliest settlers soon realized that they had lots of land to take care for, but no one to care for it. With passage to the Colonies expensive for all but the wealthy, the Virginia Company developed the system of indentured servitude to attract workers. Indentured servants became vital to the colonial economy.
Chattel Slaves are property and can be traded as such.They have no rights, are expected to perform labor (and sexual favors) at the command of a slave master. This is the form of slavery which was carried out in the Americas as a result of the trans-Atlantic slave trade.
I think the answer to that question is d and a
