Questions 1 to 5 are based on Ferdinand Oyomo's The Old Man and the Medal.
"As he opened and shut his mouth, his lower jaw went down and came up, puffing up and then deflating the skin under his chin." The subject of description in the lines above is

• A.the high commisioner
• B.the white chief
• C.M. Fouconi
• D.M. Pipiniakis