During Backpropagation Training, the Purpose of the Delta Rule Is

During backpropagation training, the purpose of the delta rule is to make weight adjustments so as to

A) minimize the number of times the training data must pass through the network.
B) minimize the number of times the test data must pass through the network.
C) minimize the sum of absolute differences between computed and actual outputs.
D) minimize the sum of squared error differences between computed and actual output.