In each of the following questions, a sentence is given

Solution

A (assist) & C (distinctive): "Share a assist relationship" is grammatically incorrect (verb where adjective is needed). "To distinctive the process" is also incorrect (adjective where verb is needed). Swapping them gives "share a distinctive relationship" and "to assist the process." B (mitigating) & D (surge): "Demand a mitigating in energy" is incorrect because "mitigating" is a participle, but we need a noun after "a". "Process of surge the heat" is also incorrect grammar. Swapping them gives "Demand a surge in energy usage" (logical cause-and-effect of rising heat) and "process of mitigating the heat effects" (grammatically correct gerund). Correct Sentence: "Energy and climate share a distinctive relationship such that rising temperatures demand a surge in energy usage to assist the process of mitigating the heat effects."