A uniform conducting wire of length 12a and resistance 'R' is wound up as a current carrying coil in the shape of
1. an equilateral triangle of side 'a'
2. a square of side 'a'
The magnetic dipole moments of the coil in each case resp. are.

Options

A. `3 I a^2` and `4 I a^2`
B. `4 I a^2` and `3 I a^2`
C. `sqrt(3) I a^2` and `3 I a^2`
D. `3 I a^2` and `I a^2`