The correct option is B Rapid cell divisions in tendrillar cells that are away from the support
Whenever any part of the pea tendril comes in contact with the support they start growing in order to coil around the support, a phenomenon called thigmotropism. Here, auxin accumulates in the region opposite to that of the support stimulating in rapid cell division in that region resulting in growth of the tendril around the support.
Therefore option (c) is correct.