As the project manager, six months into overseeing the project's progress, you're conducting a review. Activity A has incurred an actual cost of R$200,000,$ while Activity B$\text{'}$s actual cost is R$100,000.$ The planned values for these activities were R $180,000$ and R$80,000,$ respectively. With Activity A fully completed and Activity B at $75\%$ completion, what is the total Actual Cost for both tasks combined?

$300000$

$500000$

None of the above

$400000$

$($E$)200000$