Answer:
B. Family is the correct answer
Greek and Roman legacies can be seen throughout the world because a lot of our legal system which is currently in use is partially based on the ideas of old Roman and Greek legacies which were in use 2000 to 3000 years ago. This is impressive when you think about it. Two examples from Greece are the concept of Democracy and direct democracy, with examples from the Romans can be picked if you look at the Roman law in use.
These seven factors led to the development of the slave trade:
The importance of the West Indian colonies.
The shortage of labor.
The failure to find alternative sources of labor.
The legal position.
Racial attitudes.
Religious factors.
Military factors.