Read these sentences from the text. A major turning point came in 1889. Two European researchers, Oscar Minkowski and Joseph von Mering, removed a dog's pancreas, an organ that lies behind the stomach. They hoped to figure out the pancreas's function. A short time later, the dog developed symptoms of diabetes—thirstiness, weight loss, and blurred vision—and eventually died.

What can you conclude based on this evidence?
Because doctors understood the symptoms of diabetes, they could treat the disease by making patients drink more water.
Despite the dog dying when researchers removed his pancreas, doctors developed special glasses to treat blindness for diabetics.
After the dog developed diabetic symptoms, researchers understood that the liver could be removed to treat the disease.
Once researchers understood the pancreas was related to diabetes, they could study that organ more closely for a solution.

Once researchers understood the pancreas was related to diabetes, they could study that organ more closely for a solution.Explanation:Since they saw what the pancreas does in the body, they could now study it and learn more about it.

the assassination of president lincoln was just one part of a larger plot to decapitate the federal government of the u.s. after the civil war. the first reaction to lincoln’s death was disbelief. then it quickly changed to grief. abraham lincoln’s death created an outpouring of grief from citizens in both the north and the south.

explanation:

lincoln was the first u.s. president to be assassinated. president abraham lincoln, america’s civil war leader, was assassinated just five days after confederate general robert e. lee surrendered his army at appomattox court house, ending the four-year war between the states. on the evening of april 14, 1865, lincoln was attending a performance of our american cousin at ford’s theatre in washington, d.c. john wilkes booth – a 26-year old actor, confederate sympathizer, and white supremacist – slipped into the presidential box and shot lincoln in the head. john wilkes booth and his conspirators had initially planned to kidnap lincoln to save the confederate states. but as the confederacy faltered, booth’s thoughts turned to murder. booth may have decided to act on his hatred after lincoln endorsed giving the right to vote to african-american men who had served in the union army.