Two statements are given, followed by four conclusions in the options. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which conclusion logically follows from the statements.
Statements:
No hospital is clinic.
All clinics are houses.

Option (a) Some houses are not hospitals.

The given conclusion follows as per the above-given diagram. Because some part of 'house' which is 'clinics' is not 'hospital'.

Option (b) All houses are hospitals.

The given conclusion is not possible. Because 'some not' relation is available between them.

Option (c) All houses are clinics.

The given conclusion does not follow. We can say that 'some houses are clinics.'.

Option (d) No house is hospital.

There is 'some not' relation available. But the relation of 'no' cannot be said as definitely. So this conclusion does not follow.