"Mahisugandha" variety of rice is developed by the cross between the varieties of rice –

Correct option is B

Mahisugandha is a high-yielding aromatic variety of rice developed by crossing:
BK-79 × Basmati-370
It was developed by Sardarkrushinagar Dantiwada Agricultural University (SDAU) in Gujarat.
It combines the aroma and grain quality of Basmati-370 with the yield traits of BK-79.
Key Features:
Good grain quality and aroma (like Basmati)
Suitable for irrigated areas
Medium duration and moderate pest resistance
�� Mahisugandha is preferred for its basmati-like characteristics and better adaptability to local growing conditions.