Pepper is very smart border collie. she seems to understand human language. scientists would hypothesize that pepper's hemisphere would respond to meaningful words whereas her hemisphere would respond to intonation (emotion).

Left and right are the answers, respectively.

Studies have shown that, like humans, dogs may understand words and intonations coming from humans. In recent studies, scientists hypothesize that the left hemisphere of a dog's brain can process and respond to familiar words, while the right hemisphere of the brain will respond to the intonation.

i would say b. research typically uses a variety of sources

this headline suggests that midterm congressional   elections are at the corner and trump administration wants to activate his base by vowing to clamp down on immigrants and immigration as trump had said during his election campaign around two years ago. when a baby is born in usa, the baby becomes citizen of usa for 85 years and trump wants to end this rule of birthright citizenship to control illegal immigration and this what he said in an interview""we’re the only country in the world where a person comes in and has a baby, and the baby is essentially a citizen of the united states for 85 years, with all of those benefits,” "