Answer:
Technician B
Explanation:
Rotary engine, also known as Wankel, is an internal combustion engine as the definition of inernal combustion is any machine that uses energy from chemical links and transforms it in mechanical work through combustion inside it.
The rotary engine gets three power pulses for each rotation because it can compress, intake/exhaust, and expand at the time in diferent parts of the engine, separated by the tree edges of the triangular rotor.