A long solenoid of radius R carries a time (t) – dependent current . A ring of radius 2R is placed coaxially near its middle. During the time interval , the induced current () and the induced EMF() in the ring change as -
(A)Direction of remains unchanged and is maximum at t = 0.5
(B)At t = 0.25 direction of reverses and is maximum
(C)Direction of remains unchanged and is zero at t = 0.25
(D)At t = 0.5 direction of reverses and is zeroCorrect