Data from single-cell recordings are typically visualized with a raster plot in which: a) time (ms) is depicted horizontally and trials are depicted vertically, where each trial corresponds to a different neuron or set of neurons b) time (ms) is depicted horizontally and trials are depicted vertically, where all trials correspond to the same neuron or set of neurons c) time (ms) is depicted vertically and trials are depicted horizontally, where each trial corresponds to a different neuron or set of neurons d) time (ms) is depicted vertically and trials are depicted horizontally, where all trials correspond to the same neuron or set of neurons