Compared to thermocouples, RTDs typically offer higher accuracy and stability but slower response.

• A. RTDs measure temperature using resistance change but are less accurate than thermocouples.
• B. Thermocouples measure resistance and have excellent stability.
• C. RTDs provide higher accuracy and stability but slower response, while thermocouples tolerate higher temperatures and are cheaper and faster but less stable.
• D. RTDs are always used for cryogenic temperatures.

Answer: (C)