Every man, woman and child / is now aware / of the terrible consequences of / habit of smoking.

The correct answer is: E. No Error

The sentence is grammatically correct and conveys the intended meaning.

A. Every man, woman and child

This is a list of all the people in the world.

B. is now aware

This verb indicates that people are now aware of the terrible consequences of smoking.

C. of the terrible consequences of

This phrase introduces the terrible consequences of smoking.

D. habit of smoking

This is a noun phrase that refers to the act of smoking.

E. No Error

This is the correct answer because the sentence is grammatically correct and conveys the intended meaning.