German A1 Level Question

Option 'b' is correct because 'Ich lese einen Satz im Buch' means 'I am reading a sentence in the book', which is a proper context for 'Satz'. Options 'a', 'c', and 'd' are incorrect as they do not fit the meaning of 'Satz', which refers to a sentence and not something you eat, see in color, or hear on the street.