Individual Neurons in the Visual Cortex Cannot Accurately Be Called

Individual neurons in the visual cortex cannot accurately be called "feature detectors" because

A) there are not enough neurons to handle every possible feature.
B) individual cells cannot signal the presence of a particular stimulus feature with certainty.
C) both there are not enough neurons to handle every possible feature and individual cells cannot signal the presence of a particular stimulus feature with certainty
D) neither there are not enough neurons to handle every possible feature nor individual cells cannot signal the presence of a particular stimulus feature with certainty; visual cortical cells can act as "feature detectors"