Rabi crops in Meghalaya are primarily grown in:

High altitude regions
River valleys
Forested areas
Urban centers

The correct answer is: a) High altitude regions.

Rabi crops are winter crops that are grown in the northern hemisphere during the winter season. They are typically grown in areas with cool, dry weather. Meghalaya is a state in northeastern India that is located in the Himalayas. The state has a high altitude and a cool, dry climate. This makes it ideal for growing Rabi crops.

The other options are incorrect because:

  • River valleys are typically located in lowland areas, which are not suitable for growing Rabi crops.
  • Forested areas are typically located in hilly areas, which are not suitable for growing Rabi crops.
  • Urban centers are typically located in areas with a warm, humid climate, which is not suitable for growing Rabi crops.

In conclusion, Rabi crops in Meghalaya are primarily grown in high altitude regions. This is because the state has a cool, dry climate that is ideal for growing these crops.