Explanation:

Recently, Scientists from the Event Horizon Telescope (EHT) facility, revealed the first image of the black hole named Sagitar A* at the centre of our galaxy the Milky Way.

• This image of the black hole referred to as Sagittarius A* (Sagittarius A(asterisk)) gave further support to the idea that the compact object at the centre of our galaxy is indeed a black hole.
• It is near the border of Sagittarius and Scorpius constellations. It is 4 million times more massive than our sun.
• EHT is a group of 8 radio telescopes (used to detect radio waves from space) located in different parts of the world.

Hence option 1st is correct.