What statement about threads is untrue?

A.
A thread is a piece of code

B.
A thread can operate inside a virtual machine

C.
A thread is a sub-element within a process

D.
Threads cannot be executed simultaneously

Explanation:
Many threads can be executed simultaneously when several virtual
machines invoke several threads at the same time. You dont need "multiple virtual
machines" to run multiple threads, though. Multithreaded applications can do that
without the need for additional machines. This is called multi-threading. Most
modern computer systems are capable of multi-threading, which vastly improves system
performance. All other statements are true.