Which of the following is a statement?

Options

A. Open the door.
B. Do your home work.
C. Switch on the fan.
D. Two plus two is four.

Answer

To determine which of the given sentences is a statement, we first need to understand what a statement is. A statement is a declarative sentence that can be classified as either true or false.

### Step-by-Step Solution:

1. **Identify the Sentences**: We have four sentences to analyze. They are:
- A) Open the door.
- B) Do your homework.
- C) Switch on the fan.
- D) 2 plus 2 is 4.

2. **Evaluate Each Sentence**:
- **Sentence A**: "Open the door."
- This is a command and does not express a truth value (true or false).
- **Conclusion**: Not a statement.

- **Sentence B**: "Do your homework."
- This is also a command and does not express a truth value.
- **Conclusion**: Not a statement.

- **Sentence C**: "Switch on the fan."
- This is another command and does not express a truth value.
- **Conclusion**: Not a statement.

- **Sentence D**: "2 plus 2 is 4."
- This is a declarative sentence that can be evaluated as true.
- **Conclusion**: This is a statement.

3. **Final Conclusion**: Among the four sentences, only sentence D ("2 plus 2 is 4") is a statement because it can be classified as true.

### Answer:
The statement is: **2 plus 2 is 4** (Option D).