A promises to pay B a sum of money if a certain ship return within a year. The Contract may be enforced if the ship returns with the year, and becomes __________________ if the ship is burnt within the year?

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A promises to pay B a sum of money if a certain ship return within a year. The Contract may be enforced if the ship returns with the year, and becomes __________________ if the ship is burnt within the year?

A. Void
B.
Voidable
C. Both A and B
D. None of above