Which of the following statements is false?

a. In a multithreaded application, threads can be distributed across multiple processors (if available) so that multiple tasks execute in parallel and the application can operate more efficiently.
b. The JVM creates threads to run a program and for housekeeping tasks such as garbage collection.
c. Multithreading can increase performance only on multi-core systems.
d. The vast majority of programmers should use existing collection classes and interfaces from the concurrency APIs that manage synchronization for you.

Multithreading can increase performance only on multi-core systems. Actually, multithreading can also increase performance on single-processor systems—when one thread cannot proceed (because, for example, it’s waiting for the result of an I/O operation), another can use the processor.