Final answer:
Ruskin Bond's famous novel is 'The Room on the Roof', and the novel that satirized the conformity of the American middle class is 'Babbitt' by Sinclair Lewis.
Step-by-step explanation:
The famous novel of Ruskin Bond you are referring to is A) "The Room on the Roof". This novel is notable as it was Bond's first literary venture and it won the prestigious John Llewellyn Rhys Prize. "The Room on the Roof" is about an orphaned boy named Rusty who lives in India and his adventures. Although Ruskin Bond has written many books, including "The Blue Umbrella", "Rusty, the Boy from the Hills", and "The Cherry Tree", "The Room on the Roof" remains one of his most celebrated works.
Regarding the novel that satirized the conformity of the American middle class, the answer is D. Babbitt. Written by Sinclair Lewis, "Babbitt" is known for its critique of the middle-class lifestyles and values of the 1920s. It explores the life of George F. Babbitt, a real estate agent in the fictional city of Zenith, as he grapples with societal expectations and his personal desires. Sinclair Lewis's biting satire reveals the hollowness and materialism of middle-class life during this era.