$53.$ Software $($often on firmware$)$ designed to make physical products and devices $$smarter$$ by doing things like sharing usage information, helping diagnose problems, indicating maintenance schedules, providing alerts, or enabling devices to take orders from other systems is referred to as $\_\_\_\_\_\_\_\_\_\_\_.$

a$.$ Desktop software programs

b$.$ Enterprise Resource Planning systems

c$.$ Embedded systems

d$.$ Multi$-$threaded

e$.$ Application servers