A Child Had 10 Disfluencies in 100-Monosyllabic Words Speech Sample

A child had 10 disfluencies in 100-monosyllabic words speech sample. A year later, the same child produced a 100-bisyllabic word speech sample that contained 10 disfluencies. The changes that occurred can be described as follow:

A) the percent of disfluencies per 100 syllable remained the same
B) the percent of disfluency per 100 syllables doubled
C) the percent of disfluencies per 100 syllables was increased by 50%
D) the percent of disfluencies per 100 syllables was decreased by 50%
E) none of the above.