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Which of the following terms are equivalent? and in what cases/limits do the non-equivalent terms become equivalent?

A) a scale invariant quantum field theory.

B) a conformal quantum field theory.

C) a quantum field theory whose bare coupling constants are all dimensionless.

D) a quantum field theory whose physical coupling constants are all dimensionless.

E) a quantum field theory with everywhere-vanishing beta functions.

F) a quantum field theory in a fixed point of the renormalization group flow.

Thanks.

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