<prompt> A normal child has dysfluency of speech between:2 and 4 years4 and 6 years6 and 8 years8 and 10 years  <response>: a. 2 and 4 yearsRef: Nelsons 20e p 65-77, Ghai 8e p 52-53Language development occurs most rapidly between 2 and 5 years of age. The period of rapid language acquisition is also when developmental dysfluency and stuttering are most likely to emerge 