Two students are observing the disassembly of an engine. In the photo shown in Figure A-12, a small engine technician has just removed the cylinder head and gasket from the engine. Student A says that this is a four-stroke engine. Student B says that the engine has an L-type cylinder head. Which of the following statements is correct? A. Only Student A is correct. B. Only Student B is correct. FIGURE A-12—This photo should be used to answer Question 14. C. Both students are correct. D. Neither student is correct.