IEEE 829 test plan documentation standard contains all of the following except

I have found in muck test the following question:

IEEE 829 test plan documentation standard contains all of the following except: a) test items b) test deliverables c) test tasks d) test environment e) test specification

According to the website, the right answer is the option e). However, if you have a look of the IEEE 829 test plan documentation, one of the Sections to be included is: -Test deliverables : The artifacts created by the testing team that will be delivered as per this plan. Examples include - test specifications (design, case and procedure), output from tools, test reports, etc.

It looks a bit confusing. Is it a wrong question ? . When they ask about "test specification" without a "s" at the end, are they referring to another topic ?