To the circle x²+y²=4, two tangents are drawn from p(−4,0), which touches the circle at T1 and T2, a rhombus PT₁P′T₂ is completed.
If P is taken to be at (ℎ,0) such that P′ lies on the circle, the area of the rhombus is
A. 2√3
B. None of these
C. 6√3
D. 3√3