LMS quiz not qorking

Hello.

I have set one quiz which includes 16 questions.
I have one question for “multiple corect”. I have given 6-7 choices and from them 1st and 3rd answer is right.
but when in frontend, when I am selecting 1st & 3rd ans it is showing wrong answer.

check the screenshots.
1. http://prnt.sc/eb0z88
2. http://prntscr.com/eb10hm
3. http://prntscr.com/eb10xx

Please help me for solving this issue.

Thank you