Answer:
Correct option is Probable and the amount can be reasonably estimated.
Explanation:
As per accounting standards on Contingent liabilities, any liability which is likely to be incurred and which can be estimated effectively and reliably, shall be recorded in the books.
If it is probable but cannot be estimated, then a journal entry may not be recorded, but a foot note may be made.
If contingent liability is only possible (but not probable) only a foot note is required.
If contingent liability has remote possibility of occurrence, then neither an entry to record the liability nor a footnote is required.