Which excerpt from this story is most effective at creating suspense?

A Rounding the corner, she noticed that the woman had stopped to examine some canned foods on the shelves.

B Trust your instincts, her father always advised her. It's a bizarre world, so you need to trust your instincts.

C The woman was in her mid-sixties. Her brown dress looked neat and clean, though a couple of years out of style.

D I'm imagining I'm being stalked by a woman nearly three times my age, whose main concern is probably finding cereal with fiber.