The correct answer is:
(b) LM380
Explanation:
The LM380 is a special-purpose operational amplifier (op-amp). It is specifically designed as an audio power amplifier for low-power applications, often used in audio systems, where it can provide output power to drive speakers. This makes it a special-purpose op-amp compared to general-purpose op-amps like the LM741.
Here's why the other options are incorrect:
LM741: The LM741 is a general-purpose op-amp, not a special-purpose op-amp. It is widely used in many analog applications and is one of the most well-known op-amps.
IC351: IC351 is a specific op-amp model, but it is generally considered a general-purpose op-amp and does not belong to the special-purpose category.
Thus, the LM380 is the correct answer as it is a special-purpose op-amp designed specifically for audio amplification.