213. With respect to a «pusher» type azimuthing thruster, what statement is true?

With an azimuthing angle of 0°, the gear unit is directly abaft of and in the wake of the azimuthing thruster's propeller.
With an azimuthing angle of 0°, the gear unit is directly abaft of the azimuthing thruster's propeller, but the azimuthing thruster's propeller is in the wake of the gear unit.
With an azimuthing angle of 0°, the azimuthing thruster's propeller is directly abaft of the gear unit, but the gear unit is in the wake of the azimuthing thruster's propeller.
With an azimuthing angle of 0°, the azimuthing thruster's propeller is directly abaft of and in the wake of the gear unit.

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