Following the prompt and equations given above, plot a figure that graphs the following lines:

• Marginal cost (MC)
• Private Marginal Benefit (MBp)
• Social Marginal Benefit (MBs)

Also indicate and label the following areas (assuming the competitive equilibrium prevails):

• Private consumer surplus, i.e., not including external benefits (CS)
• External benefits (EB)
• Producer surplus (PS)
• Deadweight loss from competitive equilibrium (DWL)