Which of the following differential equations is solvable by the transformation y = vx , where vis a function of x? 1. (x - y) dx - (x+y) dy=0 1. (x2 - y2) dx - (x2+ y2) dy=0 Ill. y 'dx + 3xydy =0 IV. (x - 2) dx - (x+3) dy=0 A None of the statements. B Statement II & III only. Statement III & IV only. D Statement | & Ill only. E Statements I, II, & III. F Statement | & II only