单项选择题

A.(4)—(1)—(6)—(5)—(2)—(3)
B.(5)—(1)—(6)—(4)—(2)—(3)
C.(5)—(1)—(6)—(4)—(3)—(2)
D.(3)—(1)—(6)—(4)—(2)—(5)