Q:Read the following article and select the best answer. Article: Some pigs lend lo be optimistic while others have a more pessimisitic view , according to a new research that is meaningful to animal welfare. The study, published in the journal Biology Letters, is the first to show that mood and personality interact in an animal, influencing judgment. Asher, a researcher at ihc University of Newcastle's Institute of Neurowcience, and her team housed groups of pigs in the two types of environments. One reflected sandard commercial conditions and the other was _ with more space and plenty of sell, deep straw. After the pigs got accusitomed to these new homes over a few weeks , the rescarchers picked 18 pigs from each type of housing arrangement to train and test their judgment. " To do this, we trained each pig that in one comer of a training room there would be a bowl wilh chocolate sweets -- specifically M&Ms, pigs love M&Ms -- and in a bowl at the opposite side of the room there would be a bowl that would contain coffee beans, which pigs find bitter-tasting," senior author Lisa Collins of the Univerersty of Lincoln's School of Life Sciences said. Over n number of training trials , pigs leamed to go to the bowl reliably when it was in the corner where they had figured out to expect M&Ms.On the contrary,they quickly leamed to avoid the bowl when it was't in the comer where they would expect to find the coffee beans. The rescearchers next placed an unfamimliar bowl in different locations , to see how the pigs would react. Some gaily dashed to the bowl no matter what, exhibiting optimism that it would contain there favorite sweds. Others, however, behaved as though they expected it to contain coffee beans, displaying pessimism. The findings suggest that a one -- size- fits - all answer to animal welfare issues does not exist. Even if pigs are just equal lo bacon or other meal for some people, there is still cause for conccrn . Student have suggested that how an animal is trented during is lifetime can directly affect... Question: What do the findings of the new research imply? - People should treat pigs equally. - People's health relies on meat quality. - People should meet pigs' various needs. - People's attitude toward pigs is totally wrong.
A:
People should meet pigs' various needs.