I have to design a Linear Power Supply using LTspice.

The power supply is to be driven by the mains wall outlet. A multi-output transformer with a 1 A secondary current rating i is to be used in the power supply design ‒ its secondary voltages are 3, 6, 9, 12, 15 and 18 Vrms . The power supply must use a bridge rectifier constructed from four discrete diodes. The LPS design is to have three outlets : ±5 V DC at 200 mA, ±9 V DC at 300 mA and ±12 V DC at 400 mA. Furthermore, the LPS is to have a proper DC ground .

However , I have managed to simulate the multi-output transformer using inductors and I have obtained the correct secondary voltages . I am just not sure how to input it into a bridge rectifier to obtain 3 DC voltages. Can anyone help me please ? Do I use one rectifier or 6 different rectifiers ?