The Concentration $x$ Of a Certain Drug in an Organ After $t$

Multiple Choice

The concentration $x$ of a certain drug in an organ after $t$ minutes is given by $x = 0.03 \left( 1 - e ^ { - 0.1 t } \right)$ . Find the initial concentration of the drug when $t = 0$ .

A) $\quad 0.00$
B) $\quad 0.06$
C) $\quad 0.08$
D) $\quad 1.00$
E) $\quad 0.03$