How Does a Company Measure Profit Growth

How does a company measure profit growth?

A) by dividing the net profits of the firm by total invested capital
B) by subtracting the previous year's gross profit from the current year's gross profit
C) by calculating the difference between the previous year's profitability and the current year's profitability
D) by finding the percentage increase in net profits over time
E) by adding the profitability of the last two fiscal years