$$\begin{gathered} \text{ Let }p:\text{ price increases } \\ q:\text{ demand falls } \end{gathered}$$

The symbolic statement of 'If demand does not fall then price does not increase' is 

• A

  $q\to p$

• B

  $~q\to \sim p$

• C

  $~q\leftrightarrow \sim p$

• D

  $~q\to p$