Answer:
D. the desire to reunite with family members who migrated previously
Explanation:
<span>South Sudan officially secedes from the north tomorrow, concluding a decades-long struggle for independence and creating the world's newest state. But the situation on the ground is far from settled. The south's secession has strained north-south relations and sparked clashes over contested territories such as Abyei. In addition, negotiators have so far been unable to agree on many points of shared economic and political policy to implement after partition.</span>
The Penobscott river flows through Maine into the Atlantic ocean. It is also the biggest river in maine.