Consider the following in respect of the circle 4x2 + 4y2 - 4ax - 4ay + a2 = 0:
1. The circle touches both the axes.
2. The diameter of the circle is 2a.
3. The centre of the circle lies on the line x + y = a.
How many of the statements given above are correct?
1
Only one
2
Only two
3
All three
4
More than one of the above
5
None of the above