Final answer:
The maximum daily requirement for emergency supplies in the scenario is 200 units per day, obtained from the 800 units required over 4 days.
Therefore, the correct option is a) 800 units.
Step-by-step explanation:
In the scenario provided, we have to determine the Maximum daily requirement for emergency supplies. A breakdown of the supplies shows that 800 units are required for 4 days, which means 800 units divided by 4 days equals 200 units per day. On the other hand, 700 units are mentioned, but the time is not specified, making it impossible to determine the daily rate. Lastly, there is the case of 600 units for one month (30 days), equal to 20 units per day.
The determination of the maximum daily requirement involves identifying the highest number of units needed per day. Hence, based on the information given:
800 units in 4 days is an average of 200 units per day.
700 units without a corresponding time cannot be converted to a daily requirement without more information.
600 units in one month is an average of 20 units per day.
Therefore, the maximum daily requirement would have to be based on the highest calculated daily rate, which is 200 units per day, represented as 800 units over 4 days. So the correct option in this case is a) 800 units.