After each of the following sentences, a list of possible interpretations of the sentence is given. Choose the interpretation that you consider most appropriate for each sentence.
Considering that he earns a very fat salary, the engineer ought to have built a house by now. This means that the engineer

• A.has not built a house because he is still considering his salary
• B.has not built a house though he earns a handsome salary
• C.will spend all the money he earns if he wants to build a house
• D.wants to buld a house but he has not earned sufficient money