John Is a Business Buyer for a Small Chain of Retail

John is a business buyer for a small chain of retail stores. His job involves making a range of different types of purchases, from 'new task purchases' of new product lines which the stores will sell; re-buys of existing product lines, to fleet-cars for managers. For many of these purchases and inspection is not required, however, which of the following business purchases made by John is he most likely to inspect before making his final decision?

A) Purchasing office stationery.
B) Contracting for security services.
C) Obtaining finance.
D) Buying safety boots.
E) Leasing a warehouse.