请选择DCBA+R9K1F1G;h*t3U5k;e1n3g,WYour brother is younger,but he is much___.7J+Y;q(|/h6E3J0})z1R9P+C5u3h.d
A. weaker7J+Y;q(|/h6E3J0})z1R9P+C5u3h.d
B.older7J+Y;q(|/h6E3J0})z1R9P+C5u3h.d
C. happy7J+Y;q(|/h6E3J0})z1R9P+C5u3h.d
D. stronger7J+Y;q(|/h6E3J0})z1R9P+C5u3h.d