Defect description : Wrong answer for last question.
Steps to reproduce the issue : Open the experiment page, open quizzes page and select false for last question.
Expected result : It should show correct for last question.
Actual result : Instead showing wrong for last question but false is the correct answer.
Defect description : Wrong answer for last question. Steps to reproduce the issue : Open the experiment page, open quizzes page and select false for last question. Expected result : It should show correct for last question. Actual result : Instead showing wrong for last question but false is the correct answer.![Screenshot (19)](https://user-images.githubusercontent.com/42550259/54490835-763b1080-48df-11e9-954d-e0eed7dd2768.png)