请选择ABCD8C'Y3H,I.[9z9y(K7BWhich month has 28 or 29 days?(n,U2B+W2@+Q9e0e
A. July(n,U2B+W2@+Q9e0e
B. September(n,U2B+W2@+Q9e0e
C. February(n,U2B+W2@+Q9e0e
D. January(n,U2B+W2@+Q9e0e