The correct option is D to establish the premise that the status quo in the early 1950s was not satisfactory for teaching children how to read
The passage starts of by describing the angst of Mr Fletch in giving books of low quality that discourages young children from developing an interest for reading. In the nest passage, the author talks of how Dr Seuss changed the reading habits by developing interesting storylines with a very limited vocabulary set. Hence it is clear that, the first passage s used to create a premise that the time before Dr Seuss appeared, the books on the market for young children were of low quality. Hence option (d) is the answer.