Institution: বরিশাল বিশ্ববিদ্যালয় Exam: খ ইউনিট || বরিশাল বিশ্ববিদ্যালয় || 2014
Topic: বানান শুদ্ধিকরণ, Subject: Bangla Bengali literature (বাংলা সাহিত্য)

Best Answer Explained in Below-:

In the question 'শুদ্ধ বানান শণাক্ত কর:', we are tasked with identifying the correctly spelled word among the given options. Let's analyze each option for their spellings:

A) **উননব্বই**: This is the correct spelling for the number ninety-nine in Bengali. The components 'উন' (meaning 'less than') + 'নব্বই' (meaning 'ninety') form a grammatically and phonetically accurate representation of the number.

B) **কাচ**: While this spelling is commonly used to mean 'glass' or 'raw', it is considered less standard in some contexts. The word can also be spelled as 'কাঁচ', which more precisely indicates 'raw' in food terms.

C) **অভিসাপ**: This word refers to 'curse' or 'malédiction' in English, but the correct spelling is ‘অভিশাপ’. The absence of the 'ি' before 'শাপ' makes it an incorrect spelling.

D) **ঘনিষ্ট**: This term means 'close' or 'intimate', but the correct spelling is 'ঘনিষ্ঠ'. The incorrect inclusion of 'নিস্ট' rather than 'স্থ' renders it inaccurate.

Hence, the clearest and most unequivocal choice that adheres to the rules of Bengali orthography is option A, **উননব্বই**.