Select the correct answer.
What is the purpose of including this sentence in a memoir?
Failing my math exam made me realize that the habit of procrastination is bad. It taught me the importance of completing all my assignments and studying regularly.

A.
to make readers laugh
B.
to show the writer's reflection
C.
to give a summary of the story
D.
to make the story more interesting
E.
to make the story easier to understand

Read this excerpt from i never had it made. "it's all that ought to count," he replied. "but it isn't. maybe one of these days it will be all that counts. that is one of the reasons i've got you here, robinson. if you're a good enough man, we can make this a start in the right direction. but let me tell you, it's going to take an awful lot of courage." he was back to the crossroads question that made me start to get angry minutes earlier. he asked it slowly and with great care. "have you got the guts to play the game no matter what happens? " "i think i can play the game, mr. rickey," i said. the next few minutes were tough. branch rickey had to make absolutely sure that i knew what i would face. beanballs would be thrown at me. i would be called the kind of names which would hurt and infuriate any man. i would be physically attacked. could i take all of this and control my temper, remain steadfastly loyal to our ultimate aim? which is the central idea of this excerpt?