Wanderlust Gave a Security Interest in His Conestoga Wagon to Iowa

Multiple Choice

Wanderlust gave a security interest in his Conestoga wagon to Iowa Bank who perfected its security interest by filing a financing statement with the appropriate officials in Iowa.What is true about the filing of this security interest.

A) It is effective for 5 years.
B) after 5 years the security interest expires and cannot be refiled.
C) it must be filed where the collateral is located.
D) It is effective for 30 years.