And, assuming that the typo is corrected, the answer is still NONE OF THE ABOVE, because DBCC SQLPERF, as written in the question, gives an error message
What checks space in the log is DBCC SQLPERF(LogSpace), and the DBCC statement can do several other things, depending on parameters passed to it, some documented, some not.
The question is like asking "What session does KILL terminate?" with answers of 1, 0, 75 and 56452322
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