Which function pauses the program for a specified number of milliseconds?

• A. wait1Msec(milliseconds)
• B. delay(milliseconds)
• C. sleep(milliseconds)
• D. pause(milliseconds)

Answer: (A)

The need here is for a timing function that stops execution for a precise number of milliseconds. The function wait1Msec is designed for exactly that: it pauses the current task for the specified number of milliseconds. This millisecond-resolution delay is crucial for fine-grained timing in real-time programs, such as syncing sensor reads or motor actions.

Other options don’t provide the same millisecond-precision delay in this context. delay and sleep are often associated with different time units (like seconds) or aren’t the same API in this environment, and pause is typically used for waiting on user action or for an indefinite pause, not a fixed millisecond delay.