Fact Pattern 16-1 Nina Obtains a Check Payable to Her Order from Oran

Multiple Choice

Fact Pattern 16-1
Nina obtains a check payable to her order from Oran. Nina signs the back and gives the check to Patricia. Patricia writes "Pay to Patricia" above Nina's signature.
-Refer to Fact Pattern 16-1.When Patricia writes "Pay to Patricia" above Nina's signature, the check becomes​

A) ​a bearer instrument.
B) ​an order instrument.
C) ​a promissory note.
D) ​a stolen instrument.