From the given options, select the one which correctly identifies the figure of speech (poetic device) used in the expression -

Shovana sang sweet song for Rani

Alliteration

The figure of speech used in the expression "Shovana sang sweet song for Rani" is alliteration.

Alliteration is the repetition of consonant sounds at the beginning of words. In this case, the repetition of the "s" sound in the words "Shovana" and "sang" creates a sense of smoothness and sweetness.

The other answer choices are incorrect. Metaphor is a figure of speech in which one thing is compared to another thing without using the words "like" or "as." Irony is a figure of speech in which there is a difference between what is expected and what actually happens. Personification is a figure of speech in which inanimate objects are given human qualities. None of these devices are used in the expression "Shovana sang sweet song for Rani.".