The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________?

(A) The hair barging against the charged comb (X)
(B) Small electric sparks ()
(C) The rubbing of the comb with the hair (X)
(D) None of the above (X)

Answers: The cracking sound heard when dry hair is combed with a hard rubber comb is due to small electric sparks.