Answer:
I believe C is correct, not quite sure though
"... but hold it <em>like </em>a candle flame..."
The main idea of the poem is up to whoever, as poems are very subjective, however what I understand, the poem is about a forbidden love.
That is a metaphor. Two things are being compared without using like or as.
Hope this helps. :)
Answer: C. A Muslim Ruler with absolute power would be called a "Sultan".