Tetraploid variety of medicinal solanum is

Answer: Option B

The tetraploid variety of medicinal solanum is Arka Mahima.
'Arka Sanjeevini' and 'Arka Mahima' are the two diploid and tetraploid varieties of this crop developed at the Indian Institute of Horticultural Research, Hessarghatta, Bangalore and released for cultivation.
It is used as raw materials for the production of steroidal drugs, steroid-bearing solanum holds an important place due to its quick growth and low initial investment in its commercial cultivation.
It yields a glycoalkaloid, solasodine, a nitrogen analogue of diosgenine.