The correct answer is D) Centrifugal and axial. The two basic types of compressors used in gas turbine engines are centrifugal and axial compressors. Centrifugal compressors use an impeller to accelerate the incoming air radially outward, increasing the pressure. Axial compressors use a series of rotating blades to compress the air as it flows through the compressor in an axial direction. These two compressor types are the most common designs used in gas turbine engines. The other answer choices are incorrect because reciprocating compressors are not typically used in gas turbine engines, and lobe compressors are a different type of positive displacement compressor not commonly found in this application.