问题：

[单选题]You want a record of all queries that are not usin

ABy enabling the Slow Query Log because all queries that are not using indexes will be logged automatically

BBy enabling the Error Log because not using indexes is an error

CBy enabling the Slow Query Log and using the – log-queries-not-using-indexes option

DBy enabling the Error Log and using the – log-queries-not-using-indexes option