The three-point starter for DC motors has connections for which of the following?

The three-point starter for DC motors is designed to ensure that the motor starts safely and operates correctly by controlling the voltage and current levels during startup. It has specific connections that facilitate the proper sequence of operation when starting a motor.

Connecting the line and field is essential since the line connection provides the main power supply to the motor. The field connection is crucial as it connects the field windings to the power supply, allowing for the generation of the magnetic field necessary for the motor's operation. This arrangement helps to manage the starting torque and current by controlling the resistance in the circuit, preventing damage to the motor during the initial start.

The three-point starter features an armature connection as well, but the emphasis is on the line and field connections to allow the motor to reach its operational parameters safely. This is why the choice that mentions these two critical connections reflects the correct answer regarding the functionality and purpose of the three-point starter in a DC motor system.