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Pointing in 3 axis stabilization?

What is the plan for 3 axis stabilization?
I know the side with the solar cells will be pointed at the sun, but where will
the antennas be pointed:

a: pointing parallel to a line from apogee to perigee 
   (similar to alon/alat = 0)
b: toward the center of the orbit
c: toward the center of the earth
d: toward the command stations :)

a is fairly simple.
b would require the satellite to rotate once per orbit
c would require constant adjustments using the momentum wheels, however the
  adjustments on different sides of the orbit would be in opposite directions.

I was just wondering.

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