What is the title of the famous travel work by Matsuo Basho?

The title of Matsuo Basho's famous travel work is indeed "Oku No Hosomichi," which translates to "The Narrow Road to the Deep North." This work is considered one of the most significant pieces in Japanese literature, showcasing Basho's experiences and reflections during his travels through rural Japan.

Basho, a prominent figure in the development of haiku and a master of the form, wrote "Oku No Hosomichi" in a poetic style that incorporates elements of both prose and verse. The text captures not only the physical journey he undertook but also deep philosophical insights and observations about nature, life, and the human experience.

The other choices listed are not associated with Basho. "The Monkey's Raincoat" is a novel by John Shannon, "Dulce et decorum est pro patria mori" is a poem by Wilfred Owen discussing the horrors of war, and "Les Fleurs Du Mal" is a collection of poetry by Charles Baudelaire that explores themes of beauty, decadence, and the fleeting nature of life. These works, while significant in their own rights, do not relate to Basho or his travel writings.