Tangents are drawn from the point $(-1,-4)$ to the circle $x^2 + y^2 - 2x + 4y + 1 = 0$. Length of corresponding chord of contact will be-
Tangents are drawn from the point $(-1,-4)$ to the circle $x^2 + y^2 - 2x + 4y + 1 = 0$. Length of corresponding chord of contact will be-
- A
$\sqrt 2$ units
- B
$2\sqrt 2$ units
- C
$3\sqrt 2$ units
- D
$2$ units
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