The Discovery of the gravitational lens effect for quasars?

Question

1. Shows that quasars were located within the local group of galaxies.

2. Shows that quasars were giant elliptical galaxies at very great distances.

3. Shows that quasars are much futher away than the distant galaxy that forms the gravitational lens

4. proves Newton's theory of gravitation by showing that the ephoton was affected by gravity.

5. proves the existence of super massive black holes at the center of active galactic nuclei.

Answer 1

3

Answer 2

It's 3.

Answer 3

your mom invented the light bulb