Question

the main, or central, idea of the passage is mister rogers neighborhood and sesame street were television programs that both dealt with issues previously unaddressed in childrens programming. how does the detail in bold develop the main idea?
mister rogers neighborhood, created by fred rogers, first appeared on national television in 1968. rogers developed the program in order to address what he perceived as a deficiency in television programming for young children; specifically, he viewed traditional programming as neglectful of social and emotional issues. one year after the shows national debut, another new public television childrens program was introduced: sesame street, the brainchild of joan ganz cooney and lloyd morrissett. like rogers, coone and morrissett were dissatisfied with the options available for young children. they created sesame street in order to add an educational option to childrens programming. while sesame street was more academically focused than mister rogers neighborhood, both programs were unusual in their tackling of complicated issues, such as divorce, disability, and the human impact of natural disasters, which were typically ignored by traditional childrens television shows.
it offers an example of the lack of high - quality childrens programming on tv.
it compares the motivation of the creators of sesame street with that of fred rogers.
it emphasizes the negativity of the programs creators.

Explanation:

The bolded detail "Like Rogers, Coone and Morrisett were dissatisfied with the options available for young children" shows that both sets of creators (Fred Rogers for Mister Rogers' Neighborhood and Joan Ganz Cooney and Lloyd Morrisett for Sesame Street) had similar motivations. Fred Rogers was addressing what he saw as a deficiency (neglect of social and emotional issues) and the others were dissatisfied with existing options. This comparison of their motivations helps develop the main idea that both shows dealt with previously unaddressed issues in children's programming.

Answer:

It compares the motivation of the creators of Sesame Street with that of Fred Rogers.