The correct option is option c.
One of the takeaways of the General Theory of Relativity (GTR) was that the light can be curved because of the gravity of a massive object. Einstein had proposed the idea of space-time fabric.
Every object having mass will create depression in this fabric. Heavier the object, bigger the depression.
Thus when light will pass near a heavy object lets say our Sun, it will deflect. He also gave mathematical formula to calculate the deflection.
The higher the gravitational potential (the farther the clock is from the source of gravitation), the faster time passes.
Albert Einstein originally predicted this effect in his theory of relativity and it has since been confirmed by tests of general relativity.
This was later experimented by scientists by total solar eclipse on 29 May 1919. In this eclipse the Sun was to be in front of Hyades in Taurus constellation. They took the measurement of stars of Hyades visible during the eclipse and then compared them with the actual readings.
The deflection was clearly visible and the amount of deflection was very close to the values predicted by General Theory of Relativity. Thus they proved the theory of relativity right.
Therefore, the Einstein's theory of relativity states that the speed of light is different for different observer as the deflection takes place at different time.
To learn more about relativity, refer: https://brainly.com/question/23689770
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