Answer the question based on the following information.
The figure below represents sales and net profit in Rs. crore of IVP Ltd. for five years from $1994-95$ to $1998-99$. During this period the sales increased from $\text{Rs. 100 crore}$ to $\text{Rs. 680 crore.}$ Correspondingly, the net profit increased from $\text{Rs. 2.5 crore}$ to $\text{Rs. 12 crore.}$ Net profit is defined as the excess of sales over total costs.
With profitability as defined in question $137$, it can be concluded that
- profitability is non-decreasing during the five years from $1994-95$ to $1998-99.$
- profitability is non-increasing during the five years from $1994-95$ to $1998-99.$
- profitability remained constant during the five years from $1994-95$ to $1998-99.$
- None of the above