You are about to go to sea and adjust the magnetic compass.To expedite the adjustment at sea,in what order should the following dockside adjustments be made().
- AFlinders bar first,then the heeling magnet and spheres
- BHeeling magnet first,then the Flinders bar and spheres
- CFlinders bar first,then the spheres and heeling magnet
- DSpheres first,then the Flinders bar and heeling magnet