The look in whose eyes stopping him cold?

Choices:
A. not enough information
B. The Clerk
C. Rebecca
D. The Secretary
Rebecca
"That'll be $9.87."
Rebecca Ranghorn flipped up the top of the box, pulled out a glazed donut, and took bite.
The young secretary behind her looked on in disbelief. She was so ready for the weekend. But first she had to get to the office and put in her lousy eight hours. Why couldn't this woman just pay and get out of the way?
Rebecca tossed the box at the clerk. A couple of donuts flew out and fell on the floor behind the counter.
"Those are yesterday's donuts. I told you to give me the fresh ones."
"But, ma'am, these are the fresh--." The look in her eyes stopped him cold. He dumped the box in the trash and picked out a fresher dozen.
"Now, that'll be $9.87, please."
"Keep your drawers on, Jack." She sampled the new batch. "That's more like it." She threw a ten dollar bill on the counter and walked out with her donuts and large bottle of orange juice.
Her enormous black 1979 Lincoln Continental Town Car was four feet longer and twice the weight of the young secretary's Toyota Corolla parked next to it. It was costing her a fortune to drive her dad's old car. But it made her feel close to him--even though he had been dead for eleven years. She rarely had an occasion to drive out of town--and it was not a big town. Sherman, Texas has about 36,000 residents.
She pulled into the old strip mall parking lot. Most of the stores and other businesses were barely hanging on. The place hadn't seen decent shopping traffic since the 1980s. But it was the perfect location for Rebecca and her partner. They didn't need shoppers. All they needed was cheap office space. Theirs was narrow, but deep, with a reception area, two offices and a bathroom.