What is the best revision of the underlined portion of sentence 15 (reproduced below)?
A mere hoper won’t bother (or dare) to keep exactly what God says to a person with true faith when he tries and succeeds when he does.
The following passage is an early draft of an essay. Some parts of the passage need to be rewritten. Read the passage and select the best answers for the questions that follow. Some questions are about particular sentences or parts of sentences and ask you to improve sentence structure or word choice. Other questions ask you to consider organization and development. In choosing answers, follow the requirements of standard written English.
White Rose
(1)The White Rose is a shining example of resistance to Hitler. (2) The Nazi authorities also showed ruthlessness when faced with any opposition. (3) In early 1943, the fortunes of war were clearly turning against the Germans. (4) The battle of Stalingrad had been a complete disaster, resulting in the surrender of the Sixth Army on January 31, 1943. (5) Around this time, a small group of students, mostly centered in the University of Munich, began openly to agitate against the Nazi regime. (6) They say the war was lost, the good things they had thought would result from the Nazis in the 1930s as having been thrown away, and were horrified at the mistreatment of the Jews. (7) The leaders of the student revolt were Hans Scholl (25), a medical student and his sister Sophie (21), a biology student. (8) Hans Scholl had been an enthusiastic member of the Hitler Youth in 1933, but he quickly became disillusioned with Nazism as its inhumanity and barbarism became more and more clear with the passage of time.
(9) People who have never lived under a fascist government have difficulty understanding how difficult - and how dangerous it is - to organize opposition to the government (10) The Nazis in particular were organized right down to the street level and people were encouraged to inform on their parents, relatives, and friends to the Gestapo; in short, anyone who manifested disagreement with the Nazis could be in serious trouble. (11) Under its law, over 5,000 people were executed for such trivial offenses as making jokes about Hitler or listening to radio broadcasts from Britain. (12) Most of the White Rose members were medical students, except for Sophie Scholl, who majored in biology and philosophy, and many had Jewish friends or classmates, who had been persecuted under the Nazis. (13) Their disillusionment became most pronounced as the brutality of the regime became more apparent and especially when the mass deportations of the Jews began.