2 answers:
Answer:
The invention of the D. astrolabe, sail by the Arabs and Chinese made European exploration possible.
Explanation:
If not D then pick A.
The answer to your question would be D
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They didnt invent the astrolabe!
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It split the Empire into two separate halves>
Boats in the ocean and chart plotting
Answer:
If C is right why did you post the question?
Explanation:
