Which detail in the selection symbolizes a change in the familys fortune?
a. the familys horse is named steel
b. the family has a sturdy wagon
c. the family is from oklahoma
d. the family sees a light ahead

d. the family sees a light ahead

Explanation:

The text shows that a family that was living in a situation of misery, they were hungry, exhausted and dirty. They needed some support to make their situation change and have a better life. In the text, the characters start to feel hopeful when they see a light that represents Aunt Nancy's house is close, they know that when they get to her house, their luck would change and they would have a more comfortable life. For this reason, we can conclude that the detail of selection that symbolizes a change in family fortune is when the family sees a light ahead.

21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.