The interconnecting of timers is commonly called:

A) grouping.
B) programming.
C) sequencing.
D) cascading.

Cascading

In the programming of timers and counters, a technique used to extend the timing or counting range beyond what would normally be available. This technique involves the driving of one timer or counter instruction from the output of another, similar instruction.

Timers

Devices or software tools that measure time intervals, commonly used in industrial control systems to control operations and processes over time.