The equation below shows the profit $p$ from selling $n$ cups of lemonade

$p=2n-10$

Whice of the following best describes the relationship beween $n$ and $p$
A. As $n$ increases, $p$sometimes increases.
B. As $n$ increases, $p$ stays the same.
C. As $n$ increases, $p$ decreases.
D. As $n$ increases, $p$ increases.