1Mediumgeneralโฑ 45sWhat problem does the vanishing gradient issue cause in deep networks, and how does ReLU help?๐โผAIt causes training to be too fastBGradients shrink exponentially through many layers during backpropagation with saturating activations (like sigmoid), stalling learning in early layers; ReLU's constant gradient for positive inputs mitigates thisCIt only affects convolutional layersDIt has no effect on training speed or convergence