Final answer:
Option (1, 2 ), To speak during a strict time limit, it is best to use a stopwatch or a timer. These tools are designed to measure short durations precisely and can help maintain the designated limits.
Step-by-step explanation:
When being asked to speak during a strict time limit, the most suitable tool to use would be a stopwatch or a timer. A stopwatch is specifically designed to measure short amounts of time with precision, which makes it ideal for tracking a strict time limit. In practice, one person may produce a sound to indicate the start, while another person starts the stopwatch upon seeing the signal (light) and stops it when they hear the sound.
This helps to measure elapsed time more accurately, even though human reaction time might introduce some variance in the measurements. Timers can also be used as they can be set to count down from a specific period, alerting the speaker when the time limit has been reached. Calendars and clocks are not as effective in such situations as they are used for tracking longer durations or the current time, respectively.