Mustard is a crop of which season?

Correct option is B

Mustard (Brassica spp.) is primarily a Rabi crop.
Rabi crops are sown during the winter season (October to November) and harvested in spring (March to April).
Mustard requires a cool climate during growth and warm temperatures during harvest.
It is a major oilseed crop in India, used for edible oil production.