Bob bought a new home entertainment system from Radio World. He had to take out a $3,000 loan from Radio World to pay for the system. Radio World took a security interest in the entertainment system as collateral. A couple of months later, Bob took his entertainment system to Stereo Store to have some repair work done. After he was unable to pay for his repairs, Stereo Store enforced a possessory lien on the entertainment system.

The next day, Bob went to Boone County Bank (BCB), took out a $1,000 loan and decided to take a much needed vacation. BCB took a security interest in the entertainment system pursuant to a security agreement executed by Bob and BCB. BCB perfected its security interest in the entertainment system.

When Bob returned from his vacation, he defaulted on his loan to Radio World and BCB, and he still has yet to pay the repair bill to Stereo Store. Who has priority? [Assume that the state's artisan's lien statute is silent regarding priority as between Article 9 secured parties and creditors holding artisan's liens.]

a. Radio World has priority according to the first in time rule.

b. Stereo Store has priority as long as it holds possession of the entertainment system.

c. Stereo Store has priority regardless of their possession of the entertainment system.

d. BCB has priority because it did not know about either Radio World's security interest or Stereo Store's statutory lien.