Amjad, Ali & Ahmed will discuss the issue……….themselves.

Amjad, Ali & Ahmed will discuss the issue……….themselves.

Explanation
  • Amjad, Ali & Ahmed will discuss the issue Among themselves.
  • امجد علی اور احمد اس معاملے پر آپس میں بات کریں گے۔
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  • Among is a preposition. 
  • Among is the best choice for completing the meaning of the original sentence
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  • Among is used surrounded by someone or something; in the middle of someone or something
  • Among is used when talking about people or things that are not distinct and are viewed as a group:
  • There wasn't much unity among the council members.
  • Among could indicate that something belongs to a group: