<span>B is the correct answer. The verb 'to be’ is a linking verb as it links the subject with a an adjectival predicate that describes the subject. In this case, it links Pahom with the state of being unhappy.</span>
The correct answer is B, as the verb to be (in this case, "is") acts as a linking verb in the sentence.
The linking verb is a type of verb (to be) that some languages possess to construct the so-called nominal preaching of the subject of a sentence: the subject joins with this verb a compulsory complement called attribute that usually determines some property, state or equivalence thereof, for example.
to improve intelligence first the person wants to make people intelligent must be literate and if the people are literate it can be very great because literation leads toward victory and if the people of country are literate the country will be rich because everyone knows where to invest and where to spend money