Read the following code:

# Calculate totalCost of itemA with 6.5% tax
totalCost = itemA + .065

There is an error in the code. How should the code be revised in order to get the correct output?

totalCost = itemA * 0.065
totalCost = (itemA) + 0.065
totalCost = itemA * ( itemA + 0.065)
totalCost = itemA + (itemA * 0.065)