A circle S ≡ 0 passes through the common points of family of circles x2 + y2 + λx – 4y + 3 = 0(λ ∈ R) and have minimum area then
(a) area of S ≡ 0 is π sq. u
(b) radius of director circle of S ≡ 0 is √2
(c) Radius of director circle of S ≡ 0 for x–axis is 1 unit
(d) S ≡ 0 never cuts |2x| = 1