A developer is creating an application and needs a variable to store the single letter 'b' for noting blue eyes.

Rationale

Character is the appropriate variable type for storing the single letter 'b'.

In programming, a character is a data type specifically designed to hold single letters, digits, or symbols. Therefore, using a character to store the letter 'b' for denoting blue eyes is the most suitable choice.

A (Character) CORRECT

This choice accurately describes the variable type needed to store a single letter. The character data type is optimal for holding individual symbols, such as 'b', making it the correct answer for the developer's requirement.

B (Integer) YOUR ANSWER

An integer is a data type used to store whole numbers without any decimal points. It cannot hold characters or letters, which disqualifies it from being a suitable option for storing the letter 'b'. Therefore, this choice does not meet the requirement of the question.

C (Boolean) YOUR ANSWER

A Boolean data type is designed to represent true or false values. Since it cannot store characters or letters, it is not applicable for the developer's need to store the letter 'b', making it an incorrect choice.

D (Character string) YOUR ANSWER

A character string is used to store sequences of characters. While it could technically hold the letter 'b', it is more complex than necessary since the task specifically requires only a single character. Thus, this option is not the most efficient choice for the developer's need.

Conclusion

In summary, the most appropriate variable type for storing the single letter 'b' is a character, as it is specifically designed for such purposes. The other options—integer, Boolean, and character string—do not fulfill the requirement as efficiently or appropriately as the character type does.

A developer is creating an application and needs a variable to store the single letter 'b' for noting blue eyes.

Character is the appropriate variable type for storing the single letter 'b'.

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