Spinning electron

The above shows an electron with quantity of electricity $$e$$ spinning on a circular orbit. The period of the circular motion is $$T.$$ Which of the following statements is correct about the physical quantities that result from the circular motion of the electron?

a) The current intensity is $$\displaystyle \frac{e}{T}$$.

b) The direction of the magnetic moment is $$+z$$ direction.

c) The magnitude of the magnetic moment is $$\displaystyle \frac{\pi r^2T}{e}$$.

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