The author of book ‘The Guide’ is –

R. K. Laxman
R. K. Singh
R. K. Narayan
Raj Kapoor

The correct answer is C. R. K. Narayan.

Rasipuram Krishnaswami Narayana (10 October 1906 – 13 May 2001), known as R. K. Narayan, was an Indian novelist and short-story writer who wrote in English. He is best known for his series of novels set in the fictional town of Malgudi, which is based on the town of Mysore in Karnataka, India.

The Guide is a novel by R. K. Narayan, first published in 1958. It is the story of Raju, a young man who is seduced by the glamour of the city and abandons his family and his village to become a guide. He soon finds himself in over his head, and is forced to make a difficult choice between his old life and his new one.

The novel was adapted into a film of the same name in 1965, directed by Vijay Anand and starring Dev Anand, Waheeda Rehman, and Leela Chitnis.

A. R. K. Laxman was an Indian cartoonist, writer, and illustrator. He is best known for his work in The Times of India, where he created the popular character of The Common Man.

R. K. Singh is an Indian politician who is the current Minister of State for Home Affairs in the Government of India. He is a member of the Bharatiya Janata Party (BJP).

Raj Kapoor was an Indian actor, director, producer, and screenwriter. He is considered one of the greatest filmmakers of Indian cinema. He is the father of actors Rishi Kapoor and Randhir Kapoor.