The correct answer is: A. camel case
Hungarian notation is a naming convention used in computer programming to improve the readability of code. It is a type of naming convention that uses prefixes to indicate the type of data that a variable or function represents.
In camel case, the first letter of each word is lowercase, except for the first word, which is uppercase. For example, a variable that stores a number might be named number, and a function that returns a string might be named get_string().
Camel case is a popular naming convention because it is easy to read and understand. It is also consistent with the naming conventions used in many other programming languages.
The other options are incorrect because they do not describe the Hungarian notation naming convention.
- Option B, upper case, is incorrect because Hungarian notation does not use upper case letters.
- Option C, lower case, is incorrect because Hungarian notation does not use only lower case letters.
- Option D, both alphabets and numbers, is incorrect because Hungarian notation does not use numbers.