Maximizes profits of firm in a perfectly competitive market

Question

Refer to below figure. What is the amount of profit when the firm generates Q₂units: w) this is equal to the vertical distance c to g. x) this is equal to the vertical distance c to Q₂. y)  this is equal to the vertical distance g to Q₂. z) this is equal to the vertical distance c to g multiplied with Q2units.

Choose one option for the query by using the above shown figure.