In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
A monsoon is traditionally a seasonal reversing wind (1)________________ by corresponding changes in precipitation but is now (2)___________ describe seasonal changes in atmospheric circulation and precipitation associated (3)_______________ annual latitudinal oscillation of the Intertropical Convergence Zone (ITCZ) between its limits to the north and south of the equator. Usually, the term monsoon (4)___________ refer to the rainy phase of a seasonally changing pattern, although technically there is also a dry phase. The term is also sometimes used to (5)_________________ locally heavy but short-term rains.
Select the most appropriate option to fill in blank number 4.