商业银行以安全性、流动性、效益性为经营原则，实行自主经营、（）、自负盈亏、（）。

A necklace is made by stringing N individual beads together in the repeating pattern red bead, green bead, white bead, blue bead, and yellow bead. If the necklace design begins with a red bead and ends with a white bead, then N could equal ？（）

A.16

B.32

C.41

D.54

E.68