What Type of Stimuli Will Stimulate Simple Cells in the Visual

What type of stimuli will stimulate simple cells in the visual cortex?

A) lines of a specific width and oriented at a specific angle at any location in the receptive field
B) lines of various widths, oriented at various angles that are stationary anywhere in the receptive field
C) lines of specific width, oriented at a specific angle, at a specific location in the receptive field
D) lines moving across the receptive field