From the given options, select the correct figure of speech (poetic device) used in the following expression-

The princess is like a flower

Simile

The figure of speech used in the following expression "The princess is like a flower" is simile.

A simile is a figure of speech in which two things are compared using the words "like" or "as." In this case, the princess is being compared to a flower. This creates a sense of the princess's beauty, fragility, and purity.

The other answer choices are incorrect. Alliteration is the repetition of consonant sounds at the beginning of words. 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 "The princess is like a flower.".