What is Java's machine code?

What is Java's machine code?

1. a) Java source code is directly executed by the CPU.
2. b) Java source code is compiled into platform-specific machine code by the Java compiler.
3. c) Java source code is compiled into assembly code, which is then executed by the CPU.
4. d) Java source code is compiled into bytecode, which is interpreted or compiled to native machine code by the Java Virtual Machine (JVM).