Answer:
d
Step-by-step explanation:
a) Is a correct statement as belts are reinforcing materials that encircle the tire under the thread. it acts as a protecting layer.
b) This is also a correct statement as the carcass of tire is actually made of plies, layers of clothes and rubber.
c) Again true as the pattern of most of the thread are made and designed in such a ways that vehicle can drive on any road whether wet or dry.
d) This is an incorrect statement as beads are not the decorative pattern at the outer edge of the tread.