the number n has to be a multiple of 4 since it iscomplete the pattern
the first red the last white
so we can cancel c and d
and may be A since the number of patterm could be to small for the necklace
does anyone has a clue to deal with that one thanks
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.