Multi-choice problem: Continue writing the next sentence in this paragraph:

There's a young boy in a black and white hoodie helping pump out water for another boy to wash his hands. then he

Choose your answer from: (I) mouth washes his hands and does one last rinse each which is handled well. (II) goes on help another young boy wearing a black hoodie to wash his hands. (III) adds detergent from a wooden bucket into some silver bucket with pump handles that he wears and sponge top to rinse his hands. (IV) adds ice to the 10 cup cup, and adds water from other cups to be mixed.
(II)