14:I[5014,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"default"] 15:I[38392,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"PracticeCard"] 17:I[70570,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"ExamAppearanceBadge"] 16:T616,• উল্লিখিত অপশনগুলোর মধ্যে - thesis is in the singular number.
• Thesis: (noun) (singular)
English meaning: a long piece of writing on a particular subject, especially one that is done for a higher college or university degree.
Bangla meaning: যুক্তির দ্বারা সমর্থিত বা সমর্থনীয় বিবৃতি বা তত্ত্ব; প্রতিপাদ্য।
Plural form: Theses.

• অন্যদিকে,
• 'Criteria' (plural)
- এর singular number হচ্ছে - Criterion.
• Criterion: [Singular]
- English meaning: a standard by which you judge, decide about, or deal with something.
- Bangla meaning: বিচারের মাপকাঠি; মানদণ্ড।

• Oxen হচ্ছে plural number.
- The plural form of ox is - oxen.
- Singular - Ox - গৃহপালিত গবাদিপশুর সাধারণ নাম; ষাঁড়।
- Plural- Oxen - ষাঁড়গুলো।

• Data (plural)
English Meaning: facts and statistics collected together for reference or analysis.
Bangla Meaning: তথ্যাবলী।
- এর singular form হচ্ছে Datum.

Source:
1. Cambridge Dictionary.
2. Accessible Dictionary by Bangla Academy.