(a) I want to join an MBA college that is not only the best in the country but also provides the best campus jobs. It is a complex sentence where the subject 'an MBA college' is qualified by the following adjective clauses, which are joined by the conjunctions 'not only...but also.' 1. (it )is the best in the country; 2 . (it) provides the best campus jobs Each of the options (b), (d) and (e) introduce another subject 'I' in the second clause, which distorts the mean-ing and makes the sentence incorrect. The clause '(it is) best in job' in option (c), amounts to incorrect usage. A college can be, however, best in 'campus recruitment/job placement.'