We need _____________ reform of rape laws of our country.

The correct answer is - গ) root and branch.

• Root and branch
- English Meaning: used to express the thorough or radical nature of a process or operation/completely.
- Bangla Meaning: সমূল / আমূল / সম্পূর্ণরূপে।
- Ex. Sentence: We need root-and-branch reform of rape laws of our country.
- Bangla Meaning: আমাদের দেশের ধর্ষণ আইনের আমূল পরিবর্তন প্রয়োজন।

• Other options
Rank and file
- English Meaning: the ordinary members of an organization as opposed to its leaders.
- Bangla Meaning: সাধারণ স্তরের সদস্যগণ।

Run short
- English Meaning: Become depleted / have too little of something.
- Bangla Meaning: ফুরিয়ে যাওয়া / ঘাটতি হওয়া।

Source:
Website Lecture.