What is the numerical range of a char?

1. -128 to 127

2. -(215) to (215) - 1

3. 0 to 32767

4. 0 to 65535

Correct Option: D

#### AI Explanation

To answer this question, we need to understand the numerical range of a `char` data type in programming.

In most programming languages, including Java and C++, a `char` data type represents a single character and is stored as a 16-bit value.

The correct answer is D) 0 to 65535. This is because a `char` data type can store values between 0 and 65535, inclusive. The range starts from 0 because it represents the Unicode value for the character '0', and it goes up to 65535 because it represents the maximum Unicode value that can be stored in a `char`.

Option A) -128 to 127 is incorrect because this range corresponds to the numerical range of a `byte` data type, which is 8 bits in size.

Option B) -(2^15) to (2^15) - 1 is incorrect because this range corresponds to the numerical range of a `short` data type, which is 16 bits in size.

Option C) 0 to 32767 is incorrect because this range corresponds to the numerical range of an `int` data type, which is typically 32 bits in size.

Therefore, the correct answer is D) 0 to 65535.