Given below are a few questions with four highlighted words which may or may not require swapping in order to make sentence contextually and meaningfully correct. You have to choose appropriate swapping from the answers. If no swapping is required then choose option E as your answer. A cyclonic circulation is a local phenomenon and many times one (a) wonders if a local (b) factor can (c) driven the huge monsoon system which is mainly (d) impact by the cross-equatorial winds.