The gravitational lens effect has been verified by
A) observations of multiple images of the same background galaxy seen towards a massive galaxy cluster.
B) single images of highly distorted, high- redshift galaxies seen towards massive galaxy clusters.
C) observations of the bending of starlight by the Sun during a 1919 eclipse.
D) all of the above
E) None of the above; this effect is purely hypothetical.
Correct Answer:
Verified
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