OPT: a. No; b. Yes;
Q: I am verifying the answers generated by an automatic system to the following question: when did thomson make the plum-pudding model Suggested answer: The plum pudding model of the atom by J. J. Thomson , who discovered the electron in 1897, was proposed in 1904 before the discovery of the atomic nucleus in order to add the electron to the atomic model. Should I validate this answer?
A:
b.