Classical economists argue that, everything else remains the same (i.e. in the absence of externalities or market failure), any sort of government intervention on a competitive market leads to inefficiency. If so then answer the following questions:

1.Do you think that the classical economists are right, in particular, for our case of where a sales tax is imposed on the sales of a physical store?(Tip: Need to provide an argument of Classical Economist regarding taxation(in terms of total surplus))