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

A welding tool is applied to a surface. A guy that is holding a welding tool is wearing a helmet. two gloved hands

Pick your answer from: (a). grabs their tool from the floor.; (b). are using a welding gun and stick on an object.; (c). then enter into the welding environment.; (d). are measuring metal beams.;
(b).