A certain company estimates the reading level of particular books in terms of the minimum grade level of student whom they expect to be able to read and comprehend the book. The box plots below show the reading levels estimates of the top ten novels selected by a survey of young adults in 2012 and 2015.

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?