Directions: Out of the answer options given below, select the sentences that make coherent sense grammatically as well as thematically.

(A) Often visible as smog, ozone is formed in the atmosphere from hydrocarbons and nitrogen oxides, two major pollutants exhaled by automobiles, reacting with sunlight. (B) Visitors to the zoo have often looked up into the canopy and saw monkeys sleeping on the branches, whose arms and legs hang like rocks on a clothes line. (C) That he agrees with you does not signify that his reasons are the same as yours. (D) Although the manager agreed to a more flexible work schedule, he said that it must be posted on the bulletin board so that both management and labor will know what everyone is assigned to do.