Sentence Correction (SC) | Re: Shoppers in sporting goods stores, unlike in department stores, do ver

please review my understanding below:

C. those in department stores, do very little impulse shopping, do not buy a pair of skis and a boomerang when they come in for a basketball, but leave with only a basketball

''do very little...'' , ''do not buy'' is it ok to separate the two verbs with a comma?



D. those in department stores, do very little impulse shopping; someone who comes in for a basketball will leave with a basketball only and not buy a pair of skis and a boomerang as well

''and
...

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