You are presented with the following SQL query that needs a minor change. You need to add a column to the output, which will subtract the tax amount from the invoice total, to return the Sales Amount.

$$

SELECT TOP$(10)$

SalesOrderNumber

OrderDate,

SUM$($InvoiceTotal$)$ AS InvoiceSubTotal,

SUM$($TaxAmt$)$ AS TaxAmount,

FROM FactInternetSales

ORDER BY InvoiceTotalASC

Which of the following lines would achieve this desired result?

SUM$($InvoiceTotal$)$ LESS SUM $($TaxAmt$)$ AS SalesTotal

SalesTotal $=$ SUM$($InvoiceTotal$)-$ SUM $($TaxAmt$)$

SUM$($InvoiceTotal$)-$ SUM $($TaxAmt$)==$ SalesTotal

SUM$($InvoiceTotal$)-$ SUM $($TaxAmt$)$ AS SalesTotal