Semiautomatic process has a fixed cost of $$56,000$ per year and variable cost of $$40$ per unit. An automatic process has fixed cost of $$108,000$ per year and a variable cost of $$20$ per unit.

If $"x"$ represents the number of units per year, the correct equation to calculate the total cost of the automatic process $(T{C}_{\text{a}\text{u}\text{t}\text{o}})$ is:

$T{C}_{\text{a}\text{u}\text{t}\text{o}}=56,000+20x$

$T{C}_{\text{a}\text{u}\text{t}\text{o}}=56,000+40x$

$T{C}_{\text{a}\text{u}\text{t}\text{o}}=108,000+20x$

$T{C}_{\text{a}\text{u}\text{t}\text{o}}=108,000+40x$