Choose the meaning of the idiom 'Fall out'-

• Fall out: 
English Meaning: Have an argument, Leave one's place in a military formation, or on parade.
Bengali Meaning: তর্কে জড়ানো, সামরিক কায়দায় কোন স্থান ত্যাগ। 

Example of Sentences: 
1. The chemotherapy made her hair fall out.
2. He left home after falling out with his parents.
3. The two policemen at the rear fell out of the formation.

Others Option & Meaning:
• Fall off- Decrease in number, amount, intensity, or quality.
• Fall about- Laugh uncontrollably / to laugh without being able to stop.
• Far and away- By a very large amount. 

Source: lecture.