Question 15
Students $A,B,C,D,E$ occupy the top five ranks. Their guesses are: $A$: $B$ is second, $C$ fifth; $B$: $D$ second, $E$ fourth; $C$: $E$ first, $A$ fifth; $D$: $C$ second, $B$ third; $E$: $D$ third, $A$ fourth. Each student has exactly one correct statement. Who is first?