There Are Four Resources and Four Jobs to Be Done

There are four resources and four jobs to be done. Assume there must be one-to-one matching between jobs and resources. The time required for each resource to do each job is as follows: $$\begin{array} { c c c c c } & { \text { Job (Hours) } } \\\text { Resource } & \text { A } & \text { B } & \text { C } & \text { D } \\1 & 5 & 8 & 7 & 7 \\2 & 4 & 9 & 5 & 9 \\3 & 6 & 9 & 8 & 7 \\4 & 7 & 6 & 6 & 9\end{array}$$
What is the optimal assignment of resources to jobs?

A) 1 to A; 2 to C; 3 to B; 4 to D
B) 1 to B; 2 to D; 3 to C; 4 to A
C) 1 to C; 2 to B; 3 to A; 4 to D
D) 1 to D; 2 to B; 3 to C; 4 to A
E) 1 to A; 2 to C; 3 to D; 4 to B

Correct Answer:

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