kunal1608 wrote:
As explained inthis post byCrackVerbalGMAT , if most of those veterinarians were already selling the products to their clients, they would WANT to accept and mail the free promotional materials. The first sentence of the passage tells us that veterinarians generally derive some of their income from sales of such products. Sending out free promotional materials might boost sales of those products and, thus, increase the veterinarians' income.
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