Demand for Your Tie-Dyed T-Shirts Is Given by the Formula $p = 5 + \frac { 100 } { \sqrt { q } }$

Multiple Choice

Demand for your tie-dyed T-shirts is given by the formula ? $p = 5 + \frac { 100 } { \sqrt { q } }$
Where p is the price in dollars you can charge to sell q T-shirts per month. If you currently sell T-shirts for $10 each and you raise price by $1 each month, how fast will the demand drop

A) 80 T-shirts per month
B) 20 T-shirts per month
C) 160 T-shirts per month
D) 80,000 T-shirts per month
E) 800 T-shirts per month