Statements : Some hills are rivers. Some rivers are deserts. All deserts are roads. Conclusions : I. Some roads are rivers. II. Some roads are hills. III. Some deserts are hills.

The correct answer is: A. None follows

The first statement is “Some hills are rivers.” This means that there exists at least one hill that is also a river. The second statement is “Some rivers are deserts.” This means that there exists at least one river that is also a desert. The third statement is “All deserts are roads.” This means that all deserts are roads.

The first conclusion is “Some roads are rivers.” This conclusion is not valid because the first statement only says that some hills are rivers, not that all hills are rivers. It is possible that the hills that are rivers are not the same hills that are roads.

The second conclusion is “Some roads are hills.” This conclusion is also not valid because the first statement only says that some hills are rivers, not that all hills are rivers. It is possible that the hills that are rivers are not the same hills that are roads.

The third conclusion is “Some deserts are hills.” This conclusion is not valid because the second statement only says that some rivers are deserts, not that all rivers are deserts. It is possible that the rivers that are deserts are not the same rivers that are hills.

Therefore, none of the conclusions follow from the statements.