Using the diagram above, identify the true statements below.
I. The domestic quantity supplied increased from 100 000 to 150 000 units after the imposition of the quota
II. The quota is equal to 150 000 units
III. The domestic producer revenue increased from $400 000 to $900 000 after the imposition of the quota
IV. The domestic consumer expenditure increased from $1 200 000 to $1 350 000 after the imposition of the quota