X' and 'Y' jointly take a loan, from 'Z' with promise to repay the loan amount with interest within two years. Soon after taking the loan 'X' is declared as an insolvent and remains insolvent till the date of repayment of loan. 'Y' also fails to repay the loan. 'X' on account of his status as insolvent enjoys immunity from legal proceedings. In these circumstances:

Correct Answer: Z' is entitled in law to sue 'Y' alone for recovery of the entire outstanding amount