Read the sentence
 Elsa thought she was incapable of finishing the
 marathon, so she was delighted when she finally saw
 the finish line.
 How does the prefex in the word "incapable clue
 the reader in to how. Elsacis feeling
 the reader in to how Elsa is feeling?
 It explains why Elsa will not cross the finish line.
 o indicates why Elsa has never tried a marathon
 before
 It demonstrates why Elsa is so relieved to see the
 finish line.
 Ott reveals why Elsa has become such a confident
 competitor