Irfan commits to renting an apartment for one year, but he has to leave after just 6 months due to a family emergency. Which of the following is true based on Irfan's situation?
1) Irfan will have to pay the rent for the full year.
2) Irfan will not have to pay the rent for the remaining 6 months.
3) Irfan will have to find a new tenant to take over the lease.
4) Irfan will receive a refund for the rent paid for the remaining 6 months.