The amplifier which has no drift is called as

The correct answer is: A. Differential amplifier

A differential amplifier is an

amplifier that amplifies the difference between two input signals. It has the advantage of rejecting common-mode noise, which is noise that is present on both input signals. This makes it ideal for applications where there is a lot of noise, such as in audio amplifiers.

A DC amplifier is an amplifier that amplifies DC signals. It is typically used to amplify signals that are very small, such as those from sensors.

A single-ended amplifier is an amplifier that has one input signal and one output signal. It is less common than a differential amplifier, but it is simpler and cheaper to make.

A chopper amplifier is an amplifier that uses a chopper to convert an AC signal to a DC signal, which is then amplified by a DC amplifier. This technique is used to reduce noise in amplifiers.

In conclusion, the amplifier which has no drift is called a differential amplifier.