Magni03
hi, wouldnt in option b - They can refer to hotels or agents ? how is it right in this case ?
The GMAT exam
does not test pronoun ambiguity.
Incorrectly used pronouns on the GMAT will actually be
incorrect.
Either
/1/ the intended referent of such a pronoun will appear in a grammatical form that's incompatible with the pronoun (= the wrong one of singular/plural, or not a noun at all)—
or else
/2/ there just won't be a sensible referent at all (as in the case of unnecessary pronouns that are added to some versions of a sentence that works perfectly well without a pronoun).
There are other U.S. standardized tests that
have, historically, tested pronoun ambiguity. Most notably, the SAT (given to high-school students for use in undergraduate university admissions) tested this concept quite heavily for several years.
Insofar as you may see references to pronoun ambiguity in American test-prep materials, those parts were almost certainly originally motivated by those other exams; occasionally, certain topics have been observed to 'bleed together' in the publications of test-prep companies that publish materials for multiple different exams.