Not sure if this is a question..
I’m pretty certain it’s d because it does not state anywhere that the sound waves are not powerful enough to make the vocal engine useful. hope this helps brainlist would be much appreciated :)
this is Mr.Wang he is a lawyer
zhè shì means this is
wáng is a name/ family name
xiān shēng is a way of saying something like mister or sir, basically a title
tā shì means he is
lü shī is lawyer :)
