Haiku originated in the…

15th century.

16th century.

18th century.

17th century.

Hokku is the opening stanza of an orthodox collaborative linked poem, or renga, and of its later derivative, renku (or haikai no renga). By the time of Matsuo Bashō (1644–1694), the hokku had begun to appear as an independent poem, and was also incorporated in haibun (a combination of prose and hokku), and haiga (a combination of painting with hokku). In the late 19th century, Masaoka Shiki (1867–1902) renamed the standalone hokku to haiku.[20] The latter term is now generally applied retrospectively to all hokku appearing independently of renku or renga, irrespective of when they were written, and the use of the term hokku to describe a stand-alone poem is considered obsolete.[21]

The answer is b erosion and weathering