In William's (2003) Systemic Approach to Analysis and Target Selection

In William's (2003) systemic approach to analysis and target selection, the parameter of maximal classification means that the three or four targets selected from a phoneme collapse:

A) are later developing phonemes from marked manner classes.
B) are from different manner classes, different places of production, and have different voicing.
C) are all stimulable and early developing to maximize success.
D) are maximally opposed from the child's error sound.