Read this passage about Chang and Eng, conjoined twins who once worked in a traveling circus.
After many years of touring, Chang and Eng decided to retire and live a normal life. The two bought land in North Carolina and became American citizens. They eventually married sisters, Sally and Adelaide Yates, and all together had 22 children. In 1874, Eng woke one morning to discover that his brother had died from a blood clot in the night. Eng had been in better health than his brother, but he died less than three hours later. Doctors could find no explanation for Eng's death.
What is the best inference to make, based on this passage?
• The sisters wanted to live apart after their husbands died.
• Doctors did not look hard enough to find how Eng died.
• Chang and Eng's wives probably died soon after.
• Eng may have died of sorrow, missing his brother.