A circle is represented by the equation below:

(x − 5)2 + (y + 7)2 = 49

Which statement is true?

The circle is centered at (−5, 7) and has a radius of 7.
The circle is centered at (5, −7) and has a diameter of 7.
The circle is centered at (5, −7) and has a radius of 7.
The circle is centered at (−5, 7) and has a diameter of 7.