And this, dear friends, is why everyone working with SQL Server should be forced to do all development and testing on an instance and in databases with a case-sensitive collation.
SELECT 'Line' AS "type",
Geometry::STLineFromText('LINESTRING(0.0 0.0, 1.1 1.1)', 0) AS Representation;
Msg 243, Level 16, State 4, Line 1
Type Geometry is not a defined system type.
In a question that tests some other aspect of SQL Server, I wouldn't mind. But this question is specifically focussed on testing knowledge of case sensitiviy, so in this case, not considering the collation of the database is a bad oversight. Especially because the answer options not only varied upper- and lowercase in the method name, but also in the datatype name. To me, this suggested that the author had used a case sensitive database. That's why I focused on option 2 and 4 only, discarded option 2 for the all-lowercase spelling of the method, then picked option 4 because I saw it started with the correct mixed case and failed to check all the letters. Yes, I think that this spelling mistake was a bit too devious.
The only correct answer would be "query 3 or none of them, depending on the database collation". Given that this option is not available, I'd argue that "None of them" would even be a better choice than the option currently marked as correct.
Note to Steve - I suggest you might want to change the question to add "in a database with a case-insensitive collation" to the question; after that change, the answer marked as correct is, in fact, correct.