posted by Shaquitta .
MECHANICS (errors in the use of hyphens)
answer is a.
A.In a leap year, the last day of February is the twenty ninth.
B.Television viewers hope to see nearly perfect performances in international competition.
C.Meryl Streep's motion pictures are generally well received by film critics.
D.In summertime, it is important to guard against overexposure to the sun.