Q2,paper 3, june 12. In Delta Rule for error minimization

Options (A) weights are adjusted w.r.to change in the output
(B) weights are adjusted w.r.to difference between desired output and actual output
(C) weights are adjusted w.r.to difference between input and output
(D) none of the above
Answer (B) weights are adjusted w.r.to difference between desired output and actual output