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

• A、If the compile is successful， Utils.class is added to the source directory.
• B、The compiler returns an invalid flag error.
• C、If the compile is successful， Utils.class is added to the classes directory.
• D、If the compile is successful， Utils.class is added to the bigProject directory.