Correct option is B
River- Origin Hills- District- Length- Other Details
Luni- Naag- Ajmer- 511km - Discharge into Rann of Kachchh
Berach- Gogunda- Udaipur- 157km- Tributary of the Banas
Som- Bichha Mera- Udaipur- 155km- Right bank tributary of Mahi
Mahi- Vindhyachal- Dhar, MP- 583km- Enters Banswara district from MP