In Peas, Tall (T)is Dominant to Short (T), Red Flowers

In peas, tall (T) is dominant to short (t) , red flowers (R) is dominant to white flowers (r) , and wide leaves (W) is dominant to narrow leaves (w) .A tall plant that has red flowers and wide leaves is crossed to a short plant that has white flowers and narrow leaves.The resulting progeny are shown in the table.
$\begin{array}{|l|r|}\hline \text { tall, red, wide } & 381 \\\hline \text { tall, white, wide } & 122 \\\hline \text { short, red, wide } & 118 \\\hline \text { short, white, wide } & 379 \\\hline & 1000 \\\hline\end{array}$
-If two or more of the genes are linked, what map distance separates them?

A) 4 m.u.
B) 12 m.u.
C) 24 m.u.
D) 50 m.u.
E) None of the genes are linked to each other.