[bug] MCQ generation borken

[manthanabc]

Issue Title:

Bug: MCQ generation broken

Issue Description:

Problem:

mcq generation is currently broken, shows an blank page. because of wrong parsing of the response from backend

ERROR
qaPair.answer.filter is not a function
TypeError: qaPair.answer.filter is not a function
    at http://localhost:3000/main.c67f2d856a8237efebf9.hot-update.js:78:41
    at Array.forEach (<anonymous>)
    at http://localhost:3000/main.c67f2d856a8237efebf9.hot-update.js:76:38
    at commitHookEffectListMount (http://localhost:3000/static/js/bundle.js:64502:30)
    at commitPassiveMountOnFiber (http://localhost:3000/static/js/bundle.js:65995:17)
    at commitPassiveMountEffects_complete (http://localhost:3000/static/js/bundle.js:65967:13)
    at commitPassiveMountEffects_begin (http://localhost:3000/static/js/bundle.js:65957:11)
    at commitPassiveMountEffects (http://localhost:3000/static/js/bundle.js:65947:7)
    at flushPassiveEffectsImpl (http://localhost:3000/static/js/bundle.js:67830:7)
    at flushPassiveEffects (http://localhost:3000/static/js/bundle.js:67783:18)
ERROR
qaPair.answer.filter is not a function
TypeError: qaPair.answer.filter is not a function
    at http://localhost:3000/main.c67f2d856a8237efebf9.hot-update.js:78:41
    at Array.forEach (<anonymous>)
    at http://localhost:3000/main.c67f2d856a8237efebf9.hot-update.js:76:38
    at commitHookEffectListMount (http://localhost:3000/static/js/bundle.js:64502:30)
    at commitPassiveMountOnFiber (http://localhost:3000/static/js/bundle.js:65995:17)
    at commitPassiveMountEffects_complete (http://localhost:3000/static/js/bundle.js:65967:13)
    at commitPassiveMountEffects_begin (http://localhost:3000/static/js/bundle.js:65957:11)
    at commitPassiveMountEffects (http://localhost:3000/static/js/bundle.js:65947:7)
    at flushPassiveEffectsImpl (http://localhost:3000/static/js/bundle.js:67830:7)
    at flushPassiveEffects (http://localhost:3000/static/js/bundle.js:67783:18)

Proposed Solution:

Fix the issue by changing output.jsx. to refer to correct property
qaPairs.answer is a type string, while the options are at qaPairs.options,
This could have happened because someone refactored the backend and forgot to change it in the frontend

Expected Behavior:

Should show the output page, similar to the one shown by other pages

Labels:

- Bug
- MCQ generation

edit: used the correct issue template