Consider the four market structures:

$(1).$ Perfect competition

$(2).$ Monopolistic competition

$(3).$ Oligopoly

$(4).$ Monopoly

In which market structure$($s$)$ will we see technical and allocative efficiency in the long run?

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a

$(1)$ only

b

$(1)$ and $(2)$

c

$(4)$ only

d

$(3)$ and $(4)$

e

$(2)$ and $(3)$