Question 24

The birthdays, formatted as 12/24/1977, for every patient in a medical database would require a string array as a data type.

Using a string array is necessary for storing formatted dates like the example given, as they are not purely numerical values but instead contain characters, slashes, and specific formatting that distinguishes them from standard numbers.

A) A list of indicators declaring whether a sleep study patient slept at least 6 hours each night

This option would typically require a boolean array rather than a string array, as the data consists of true/false indicators rather than formatted string representations. The data type needed here is not suitable for string arrays.

B) All the prime numbers between 0 and 900

Prime numbers are integers and would be best represented using an integer array. This option does not involve any string data or formatting, making a string array inappropriate for this type of information.

C) The birthdays, formatted as 12/24/1977, for every patient in a medical database

This option correctly requires a string array because the birthdays are given in a specific format that includes slashes and a combination of numbers. Each birthday must be treated as a string to preserve the formatting.

D) A list of all odd numbers from -1001 to 1001

Odd numbers are numerical values and would be best stored in an integer array. This does not involve any character formatting that would necessitate the use of strings, making a string array unsuitable for this choice.

Conclusion

The correct answer is C, as it explicitly involves formatted date strings that require storage as string data types. All other options either involve numerical data or boolean indicators that do not necessitate a string array, confirming that C is the only appropriate choice for the given requirement.