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In grammar, modifier is an optional element in clause structure or phrase structure.
For example, This is a red carpet...Here red is a modifier which is modifieing the carpet.
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According to "Make it New," the type of traditional poetry that most strongly influenced modernist poets was the "haiku." A number of modernist poets were influenced by the poetic form of the haiku. The form of the haiku focus on providing precise and focused images and ideas, with very little direct commentary or observation from the author. A number of Modernist poets, who felt that poetry should exclude the direct view point of the author and provide a sharp and distinct image in words, found this ancient poetic form to be attractive and useful.
C: demonstrate that Washington was an important figure in history
B either or judgement, the person is stating that anyone who is not with them is against him therefor making it an either or statement