Ploting time series data shows only one time series out of two in Python-CodePudding

I have two time series to plot in single box using matplotlib in python. However, I can see only one line instead of two. I have a data frame which contain three columns. "A"," B","C". I would like to plot a line chart for "B" and "C" but it only shows "C". Here in my dataset which is pandas data frame and code to plot chart.

LI_DF = pd.DataFrame(columns=['A','B','C'])

plt.figure(figsize=(16,8), dpi=150))
LI_DF.plot(label='LI_DF', color=['orange','green])
plt.legend()

I have checked time series type for all three of them and they are same.

Please see attached two screenshot for data frame and final chart output.