The strategies that the company ________ to sell its products _______ house-to-house marketing. A. use, includes B. uses, include C. used, includes D. uses, including

GATE 2019 · General Aptitude · Tenses · medium

Answer: 'Uses' (first blank) and 'include' (second blank) — each agreeing with its respective subject. Answer: B.

1. Find the subject of the first blank: First blank is inside the relative clause: '...that the company ___ to sell its products.' Subject = 'the company' (singular). Singular subject requires singular verb with -s: 'uses'.
2. Find the subject of the second blank: Second blank is the main verb: 'The strategies ... ___ house-to-house marketing.' Subject = 'The strategies' (plural). Plural subject requires plural verb without -s: 'include'.
3. Match pair to options: Required pair: (uses, include). Option B = (uses, include). This is the only option satisfying both agreement rules.
4. Confirm the answer: Full sentence: 'The strategies that the company uses to sell its products include house-to-house marketing.' Grammatically correct.