Fact Pattern 26-1 Nina Obtains a Check Payable to Her Order from Oran

Multiple Choice

Fact Pattern 26-1
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 26-1. When Patricia writes "Pay to Patricia" above Nina's signature, Nina's signature becomes​

A) ​a blank indorsement.
B) ​a qualified indorsement.
C) a special indorsement.​
D) ​a forgery.