Nylon Rope, a Polyamide Fibre Product, Has a Tendency to Stretch

Nylon rope, a polyamide fibre product, has a tendency to stretch when it becomes wet (during a rainstorm, for example) . Why?

A) The water molecules act like plasticizers.
B) The water leads to cooling of the rope.
C) The nylon polymer molecules degrade in the presence of water.
D) The water molecules disrupt the intramolecular H bonds.
E) Cross-linkages are dissolved in water.