The plot above shows a side and a top view of a solenoid carrying current $\backslash ($ I $\backslash )$ with electric and magnetic fields $\backslash ($ E $\backslash )$ and $\backslash ($ B $\backslash )$ at time $\backslash ($ t $\backslash ).$ In the solenoid, the current $\backslash ($ I $\backslash )$ is:

$1.$ Increasing in time

$2.$ Constant in time.

$3.$ Decreasing in time.

$4.$ Don't have a clue.