243 statements some mountains are hillocks. some mountains are rivers. some mountains are valleys. conclusions i. all mountains are either hillocks or rivers or

243 Statements Some mountains are hillocks. Some mountains are rivers. Some mountains are valleys. Conclusions I. All mountains are either hillocks or rivers or valleys. II. No valley is river. III. Some rivers are valleys. (A) None follows (B) Only I follows (C) Only either II or III follows (D)Only III follows