Explanation: In a basic synchro system, angular information is transmitted via AC voltages. The synchro transmitter (TX) has a rotor that induces varying AC voltages into its three stator windings as it rotates. The magnitude and phase relationships of these induced voltages directly correspond to the rotor's angular position. These three specific AC voltages, which encode the angular data, are then transmitted through three dedicated wires—the **stator lines**—to the synchro receiver's (RX) stator. The RX stator uses these incoming voltages to create a magnetic field that aligns its rotor to the same angle as the TX rotor. Therefore, the angular information is carried on the stator lines. * **A) DC feedback signal:** Synchros operate on AC principles; DC feedback is not the primary carrier of angular information in a basic system. * **C) Deflection coils:** These are typically found in devices like CRTs for beam manipulation, not in synchro systems. * **D) Rotor lines:** Rotor lines carry the AC excitation voltage *to* the rotor, but they do not transmit the variable angular information itself.