In Light of Luke's Speech Sample in Table 16-1 for General

In light of Luke's speech sample in Table 16-1 for General American English, the phonological processes most likely evident on Luke's (4;3 years) realization of the word scratch / / $\rightarrow$ [dæt] are:

A) cluster simplification, prevocalic voicing, and stopping of affricates.
B) cluster reduction and prevocalic voicing.
C) cluster reduction, prevocalic voicing, and velar fronting.
D) cluster reduction, prevocalic voicing, velar fronting and stopping of affricates.