Help me with english please anyone!

When people are asked to recall a list of words they had earlier memorized, they often substitute synonyms for some of the words on the original list. this best illustrates the impact of:

Which sentence best describes the biased way the author approaches this topic? boars = bacon. and gammon, chops, sausages and feel your salivary glands begin to tingle at the thought of your teeth sinking into that first tender mouthful, and you will be half way towards a sensible attitude towards these creatures. they’re pigs. porkers, hogs, swine, if you will. they dig up people’s gardens, occasionally attack their dogs, spread disease and generally cause a nuisance. in culinary terms, they’re no different to cows or sheep or any of the other feeble-minded, four-legged frolickers which, in various pasties, pies and other assorted pastry cases, end up on our steaming plates on a daily basis. low in fat but high in deliciousness, by eating a wild boar you aren’t depriving poor little peppa and george of a long-lost cousin, but rather reaffirming your god-given position at the top of the food chain. if a boar could eat you it would, thus i say we should return the favour with interest. so say no to the misty-eyed squealers and man up, tuck in and pig out!

Mr and mrs van daan murmur their welcome what are the playwrights indicating by using the word murmur?