রবি মৌসুমের ফসল কোনগুলো? 

The answer given is বোরো, সরিষা, মুলা, which corresponds to option d. Let's break down why this is the correct answer.

রবি মৌসুমের ফসল (Rabi season crops) are typically those crops that are sown in winter and harvested in spring. Here’s a brief overview of the listed crops:

    
• বোরো: This is a variety of rice that is grown during the Rabi season.
    
• সরিষা: This is mustard, which is commonly cultivated in the Rabi season as well.
    
• মুলা: This refers to radish, a root vegetable that is also harvested during this season.

All three crops mentioned in the answer are well-known Rabi season crops, making option d the correct choice. The other options contain crops that are either not suited for the Rabi season or are predominantly grown in other seasons like Kharif.

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