The correct option is B Rs. 30
As per SEBI guidelines, the amount of application money collected per share should not be less than 25% of the issue price of the share. Here, the shares are issued at Rs 100 each with 20% as premium i.e. issue price is Rs 120 per share. Hence, the minimum amount of application money to be collected per share as per the SEBI Guideline will be 25% of Rs 120 i.e. Rs 30.