Identify a numerical value used in this program that might appropriately be stored in a constant. (Recall that a constant is a value that plays a significant role in a program and does not change during the time the program is running.) There may be more than one possibility but you are only required to identify one. You are not asked to implement this constant.
1. Earth's gravitational acceleration: 9.8 m/s² (for calculations involving free-fall acceleration or force of gravity)
2. Maximum sustainable drawdown rate for a rechargeable battery: 0.3C (where 'C' is the battery capacity in ampere-hours)
3. The number of seconds in a minute: 60 (for time-related calculations)
4. Temperature threshold for triggering an alert in a temperature control system: 100°F (for systems that monitor temperatures in specific environments)
