In the question given below, a sentence is given with two emboldened words. Three answer choices are giving replacements in the option that gives the correct combination of the answer choices. In case, the sentence is correct as it is, select ‘No Improvement’.

Before successfully completing the Lok Sabha 2004 elections, Congress President Rahul Gandhi reportedly worked at a management consulting firm in London for three years and then served as a director at a Mumbai-based technology insourcing firm.

(A) successful competing, insourcing firm

(B) successfully complementing, outsourcing firm

(C) successfully competing, outsourcing firm