$($One$-$way Traffic light$)$ Using the example code for the blinking yellow light, develop a python program to display a single traffic light with the following required cases:

a$.$ Green light turns on for $5$ seconds while the yellow and red LED are off.

b$.$ Yellow light turns on for $1$ second while the red and green LED are off.

c$.$ Red light turns on for $5$ seconds while the yellow and green LEDs are off.