Given the following directory structure: bigProject |--source | |--Utils.java | |--classes |-- And the following command line invocation: javac -d classes source/Utils.java Assume the current directory is bigProject,what is the result? （）

AIf the compile is successful, Utils.class is added to the source directory.

BThe compiler returns an invalid flag error.

CIf the compile is successful, Utils.class is added to the classes directory.

DIf the compile is successful, Utils.class is added to the bigProject directory.