(i) Yangtze River is known as Sorrow of China.
(ii) Wu-Ti constructed the Great Wall of China.
(iii) Chinese invented gun powder.
(iv) According to traditions Mfencius was the founder of Taoism.
(a) (i) is correct
(b) (ii) is correct
(c) (iii) is correct
(d) (iii) and (iv) are correct
