Terrible question. The only correct answer is "it depends", and that answer was missing.
If the default language of your server happens to be, for example, British English, you'll get 1 as your answer. Same for German, Dutch, French, and several other languages.
Add this to the fact that it's impossible to know what date the number 40358 represents, and you get a question that is impossible to answer without running the code, and even after running it leaves you with a choice between two answers.
(I used an educated guess - in my experience, over 90% of the code that does not cater for international use comes from the US, so I picked the answer I got when using SET LANGUAGE us_english)
Please do submit more questions in the future - but not of this quality.
Hugo Kornelis, SQL Server/Data Platform MVP (2006-2016)
Visit my SQL Server blog: http://sqlblog.com/blogs/hugo_kornelis