What is the exact meaning of coherence and cohension

Read this example: original work - a novel about a man's struggles to returnhome to his family after spending the past ten yearsfighting in a war.which work would represent a change to the artistic medium of this originalwork? a. a story written about the man's adventures since the warb. a novel that translates the story into another language.c. a painting of the man wishing he was home with his familyd. a book written about the war the man was fighting

Which word in the sentence is the object of the preposition ? scrape the dishes and put them in the sink 1)in 2)them 3)dishes 4)sink

Andy bernard laughed at my joke, spitting out his water. complete thought incomplete thought