"It pays to Nail down Lawn chairs on Jupiter" how does the author introduce the central idea that there was little information about jupiter?

79 one theme in stowe’s uncle tom’s cabin is a)circle of lifeb)true christianityc)american ideals and realityd)families destroyed by slavery

This is the political, social, cultural, and economic 'time and place' surrounding the creation of a literary text.

Which of these sentences exhibits proper usage? a. many doctors affiliated with university hospital expressed concern about the policy (moore 5). b. many doctors affiliated with university hospital expressed concern about the policy (moore 5). c. many doctors affiliated with university hospital expressed concern about the policy (moore 5). d. many doctors affiliated with university hospital expressed concern about the policy (moore 5).