Sureeya Sells Jewellery at Her Store Premises

Sureeya sells jewellery at her store premises. Sureeya agreed to sell Janet's ring as her agent. Janet agreed to pay Sureeya a commission of $100 regardless of the sale price. Under their agreement, Sureeya did not have authority to sell the ring without Janet's approval. After Sureeya put the ring up for sale, Talia offered Sureeya $7500 for it. This was far above the regular fair market price of $5000 because the ring would complete a set that Talia had. Sureeya sold the ring to Talia. Which of the following best describes Sureeya's legal position?

A) Sureeya did not breach her duties to Janet because she did not benefit in any way from the sale to Talia at the higher price.
B) Sureeya breached her duties to Janet because she could not be sure that the price Talia offered was the best possible price.
C) Sureeya did not breach her duties to Janet because she exercised adequate care to ensure that she received the best price for the ring.
D) Sureeya breached her duties to Janet because she failed to follow Janet's instructions.
E) Sureeya did not breach her duties to Janet because she acted in the best interests of Janet.