'He leads an unhappy life.'

The Exclamatory sentence for the given Assertive sentence is:

What an unhappy life he leads!

The correct Exclamatory sentence for the given Assertive sentence "He leads an unhappy life." is: "What an unhappy life he leads!" OPTION 3

Explanation:

1. Interrogative Word "What":

   • In exclamatory sentences, the interrogative word "what" is often used to express strong emotion or surprise.

2. Inversion:

   • The word order is inverted in exclamatory sentences. In this case, the subject ("He") and the verb ("leads") are inverted to form "What an unhappy life he leads!" This inversion adds emphasis and contributes to the exclamatory tone.

3. Exclamation Mark:

   • Exclamatory sentences typically end with an exclamation mark to convey the emotional intensity.

In summary, the transformation involves using "what" to introduce the exclamation, inverting the word order for emphasis, and adding an exclamation mark to signal strong emotion or surprise.