MCQOPTIONS
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| 1. |
Indian astronomers have reported one of the strongest flares from a feeding supermassive black hole or blazar called BL Lacertae. It is how many million light-years away? |
| A. | 5 |
| B. | 8 |
| C. | 10 |
| D. | 12 |
| E. | 15 |
| Answer» D. 12 | |