Answer:
Simile
Explanation:
This is a simile, because of the comparison between her smile and that of a flower, because of this comparison, it may be mistaken for a metaphor. But a simile is always distinguished because of the use of 'like' and 'as' in the comparison. Therefore the figure of speech used is a simile.
The etymology of the word impose includes:
> in (Latin) meaning in or upon + ponere (Latin) meaning put = imponere (Latin) meaning inflict or deceive or poser (Old French) meaning "to put". Therefore, the answer is option D. To put.