A hyperbola having transverse axis of length 12 unit is confocal (having same foci) with the ellipse 3x²+4y²=12, then
A. equation of the hyperbola is x²−y² + 15=116
B. eccenticity of the hyperbola is 4
C. distance between the directrices of the hyperbola is 18 unit
D. length of latus ractum of hyperbola is 152 unit