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What is wrong description of backpropagation? Select one: O The learning process of the backpropagation algorithm consists of a forward propagation process and a back propagation process. The backpropagation phase sends training inputs to the network to obtain an stimuli response. The backpropagation algorithm is mainly repeated by two loops (excitation propagation weight update) until the response of the network to the input reaches the predetermine target range. O The backpropagation algorithm is a learning algorithm suitable for multi-layer neural networks, which is based on the gradient descent method. Clear my choice