the word \static\ means stay. what happens when static electricity starts flowing?\nthunder\nlightning/sparks…

Brief Explanations:

When static electricity, which is stationary charge, starts flowing, it creates a sudden discharge. Lightning and sparks are examples of such discharges of static - electricity. Thunder is the sound caused by lightning, not the direct result of static - electricity flowing. And clearly, something happens when static electricity flows.

Answer:

B. Lightning/Sparks