Four Hundred Accidents That Occurred on a Saturday Night Were

Four hundred accidents that occurred on a Saturday night were analyzed. The number of vehicles involved and whether alcohol played a role in the accident were recorded. The results are shown Below:
$\begin{array}{l}\text {\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad Number of Vehicles Involved }\\\begin{array} { l | c c c | c } \text { Did Alcohol Play a Role? } & 1 & 2 & 3 \text { or more } & \text { Totals } \\\hline \text { Yes } & 54 & 100 & 16 & 170 \\\text { No } & 29 & 171 & 30 & 230 \\\hline \text { Totals } & 83 & 271 & 46 & 400\end{array}\end{array}$

Suppose that one of the 400 accidents is chosen at random. What is the probability that the accident involved alcohol or a single car?

A) $\frac { 199 } { 400 }$

B) $\frac { 27 } { 200 }$

C) $\frac { 83 } { 400 }$

D) $\frac { 17 } { 40 }$