Certainly! Let's go through each option one by one to determine which of the following is NOT a Boolean operator.
### Step-by-Step Solution:
1. Option A: AND
- The AND operator is a Boolean operator. It takes two boolean values and returns true if both values are true, otherwise it returns false.
2. Option B: EITHER
- The EITHER operator is not a standard Boolean operator. Boolean operators are part of the logical operations, and "EITHER" does not fit into the category of standard Boolean operations.
3. Option C: NOT
- The NOT operator is a Boolean operator. It takes a single boolean value and inverts it. If the value is true, it returns false, and if the value is false, it returns true.
4. Option D: OR
- The OR operator is a Boolean operator. It takes two boolean values and returns true if at least one of the values is true.
### Conclusion:
After reviewing these options, we can see that AND, NOT, and OR are all Boolean operators. However, "EITHER" is not a Boolean operator.
Therefore, the option that is NOT a Boolean operator is:
Option B: EITHER
So, the correct answer is:
B. EITHER
