Speaker/ can/ add/ enormous/ to/ complexity/ of / the /verbal message/ through/ simple/ non-verbal/ signals

A. Speaker can add enormously to the complexity of the verbal message through simple non-verbal signals.

B. A speaker can add enormously to the complexity of the verbal message through simple non-verbal signals.

C. Speaker can add enormous to the complexity of the verbal message through simple non-verbal signals.

D. A speaker can add enormous to complexity of the verbal message through simple non-verbal signals.