• The correct spelling is- Questionnaire.

• Questionnaire (Noun):
- Bangla Meaning: প্রশ্নাবলি; মতামত জরিপ কাজে ব্যবহৃত প্রশ্নমালা।
- English Meaning: A list of questions that several people are asked so that information can be collected about something.

Example:
- We have compiled a questionnaire for the survey.
- You're requested to fill in the questionnaire.

Source: Accessible Dictionary, Cambridge Dictionary.

 'Accelerate' (অপশন খ) is the correctly spelled word.

• Accelerate (Verb)
English Meaning: (especially of a vehicle) begin to move more quickly.
Bangla Meaning: গতি বাড়ানো; ত্বরান্বিত করা।

Synonym: speed up, hurry up, get faster, move faster, go faster, drive faster, get a move on.
Example Sentence: Inflation started to accelerate.

Source: Oxford Learner's Dictionary And Accessible Dictionary by Bangla Academy.