Which of the options best fills the gap 9?

Directions: Read the passage and complete the gaps to make meaningful sentences.

Jane Austen’s novels ------9----- an exactness of structure and a symmetry of form. In Pride and Prejudice the plot is -----10----- chief interest, simple but pervasive. Austen’s later novels, Mansfield Park and Emma ------11-------  longer and more elaborate than other novels. The incidents happen so naturally out of the influence of character on character, that we ------12-----  that they are part of a design or scheme.