In a confusion matrix, out of a total of $1000$ observations of test data, TP $($true positives$)=420,$ TN $($true negatives$)=390,$ FP $($false positives$)=110,$ FN $($false negatives$)=80.$ What is the overall accuracy?

A$.81\%$

B$.19\%$

C$.82\mathrm{.}98\%$

D$.79\mathrm{.}25\%$