Match each of the following cost items with the value chain business function where you would expect the cost to be incurred:

$\backslash$table$[[$Cost ltem,Business Function$],[1.$ Purchase of raw materials,$],[2.$ Advertising,$],[3.$ Salary of research scientists,$],[4.$ Delivery expenses,$],[5.$ Reengineering of product assembly process,$],[6.$ Replacement labor expense for warranty repairs,$],[7.$ Manufacturing supplies,$],[8.$ Sales salaries,$],[9.$ Purchase of CAD $($computer$-$aided design$)$ software,$],[10.$ Salary of website manager,$]]$