Answer and Explanation:
D. An Important connection point for trading ships and airlines.
This answer makes the most sense when finishing the sentence. It says that Singapore is centrally located in Southeast Asia along busy sea routes. This allows it to be in the middle of all of the business happenings and trade places, allowing it to be the connecting point for all of these important things.
A isn't correct to end this sentence because the point is only connecting to Singapore, not other areas in Southeast Asia.
B isn't correct because they don't have any oil mines/towers to produce the oil and petroleum from. They would have to import from other countries to obtain oil and petroleum.
C isn't correct because the countries didn't have a dispute over their borders/boundaries; it was other countries they had a dispute with. It also doesn't relate to Singapore being centrally located in Southeast Asia.
I hope this helps!
#teamtrees #PAW (Plant And Water)
