A Local Electronics Retailer Recently Conducted a Study on Purchasers

A local electronics retailer recently conducted a study on purchasers of large screen televisions.The study recorded the type of television and the credit account balance of the customer at the time of purchase.They obtained the following results. $\begin{array} { | l | c | c | c | c | } \hline \begin{array} { l } \text { Credit } \\\text { Balance }\end{array} & \text { Standard TV } & \text { LCD } & \text { Plasma } & \text { Projection } \\\hline \text { Under \$200 } & 10 & 16 & 40 & 5 \\\hline \$ 200 - \$ 800 & 8 & 12 & 24 & 15 \\\hline \text { Over \$800 } & 16 & 12 & 16 & 30 \\\hline \text { Total } & 34 & 40 & 80 & 50 \\\hline\end{array}$
What percentage of purchases were plasma televisions by customers with the smallest credit balances?

A) 50.00
B) 39.20
C) 56.30
D) 34.80
E) 19.60