The general basis for forming the Republican Party was "<span>C. uniting several Northern antislavery coalitions," since the Republicans broke away from the Whig Party for this purpose. </span>
Sea explorations were made by many countries centuries ago. These were headed by the European countries long back. The impulses or urges that influenced the explorers are to desire to take hold of other land for territorial expansion.
Another very important thing to consider as well was the trading. One country had to exchange products to another country. Hence, there were need for them to cross the seas.
India would be under Britain rule
I believe the answer to this question is C.
Hope this helps
Plessy v ferguson!! i think anyways it established the "separate but equal" thing
