Which small weight class aircraft typically has a certified takeoff weight of 12,500 lbs or less?

The option referring to light propeller-driven aircraft is correct because these aircraft are specifically designed and certified to have a maximum takeoff weight of 12,500 pounds or less. This category often includes a wide range of smaller aircraft that are commonly used for general aviation, flight training, and personal transportation.

These aircraft are characterized by their efficiency, lower operating costs, and versatility, making them popular among pilots and flying enthusiasts. Light propeller-driven aircraft can include many models of small airplanes, which are typically powered by a single or multiple piston engines using propellers for thrust.

Other categories mentioned do not align with this maximum weight specification. Single-engine jets and twin-engine jets usually exceed this weight limit due to their design for higher performance and capacity. Normally-aspirated aircraft, which refer to engines that are not turbocharged and rely solely on atmospheric pressure for performance at altitude, can also be part of the light aircraft category, but the phrasing does not emphasize the weight limit as clearly as "light propeller-driven aircraft."