The second sentence is completed with<u> which,</u> it will mean the same as the first.
They work for a company <u>which </u>sells computers.
<h3>What are conjunction?</h3>
Conjunctions are the words that are used to join the sentences or phrases. Conjunctions are ("and," "but," "or," "for," or "yet"). etc.
The options are attached here:
Which, that, who, where.
Thus, the correct option is which.
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