Final answer:
The word 'verge' is best matched with the option 'tend,' which captures the meaning of being on the brink or edge of something, close to occurring.
Step-by-step explanation:
The word "verge" can be matched with the word "brink" which means to be on the edge or about to occur. When we look at the options given: a) incline, b) lean, c) tend, d) extend - tend is the closest in meaning to verge. For example, if one tends towards a particular outcome, they are on the verge of that outcome. The word "verge" could suggest being on the brink of something, close to happening, or in a position where something is imminent.