Willy makes proper use of the wiki feature on the company intranet when he ________.

A) lists a few personal items for sale to other employees
B) explains to his boss why he deserves a raise this year
C) explains what he thinks company management is doing wrong
D) adds some updated features to product information

Willy is making proper use of the wiki feature by adding updated features to product information, which can be accessed and utilized by other employees for their work-related tasks. Listing personal items for sale, explaining why he deserves a raise, or criticizing company management are not appropriate uses of the wiki feature.