Answer:
c. astrolabe
Explanation:
Astrolabe is a device for taking measurements of the positions of heavenly bodies. The instrumental was used by early astronomers in order to measure the position of the sun and the stars.
The Astrolabe is capable of measuring the angle between the heavenly bodies and the demarcation between the earth and sky. This angle measurement helps to give the exact position of the heavenly bodies .
B and c because usually those assassinations were broadcasted to the audiences
Brehnev welcomed Nixon to visit Moscow. The Soviet Union reacted to the standardization of relations amongst China and the United States by having Brehnev welcome Nixon to Moscow. President Nixon trusted that normalizing relations with china drive a wedge amongst China and the Soviet Union.
