Which Statement About Somatosensation Is FALSE

Which statement about somatosensation is FALSE?

A) Common household items can typically be recognized through touch only within 3 seconds with an accuracy rate of 95%.
B) The grating orientation discrimination test evaluates the ability to discriminate between rough and smooth objects.
C) The limit of being able to detect when grooves are present or not in an object is when the grooves are narrower than 1 mm.
D) Accuracy for a small distance on the two-point threshold test would be greater on the fingertips than on the back.