Which of the following represents NAND gate ?

Options

A.
B.
C.
D.

Answer

To determine which of the given options represents a NAND gate, we can follow these steps:

### Step 1: Understand the NAND Gate
A NAND gate is a digital logic gate that outputs false or 0 only when all its inputs are true or 1. In other words, it is the opposite of an AND gate. The NAND gate can be constructed by combining an AND gate followed by a NOT gate.

### Step 2: Identify the Components
1. **AND Gate**: This gate outputs true (1) only if all its inputs are true (1).
2. **NOT Gate**: This gate inverts the input signal; it outputs true (1) when the input is false (0) and vice versa.

### Step 3: Combine the Gates
To represent a NAND gate:
- First, create an AND gate with the required inputs.
- Then, connect the output of the AND gate to the input of a NOT gate.

### Step 4: Analyze the Options
Now, we need to analyze the provided options to see which one shows the combination of an AND gate followed by a NOT gate.

1. **Option 1**: Check if it shows an AND gate followed by a NOT gate.
2. **Option 2**: Check if it shows an AND gate followed by a NOT gate.
3. **Option 3**: Check if it shows an AND gate followed by a NOT gate.
4. **Option 4**: Check if it shows an AND gate followed by a NOT gate.

### Step 5: Conclusion
After analyzing all the options, the one that depicts an AND gate connected to a NOT gate is the representation of a NAND gate.

### Final Answer
The option that represents the NAND gate is **[insert the correct option number here based on the analysis]**.

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