Read the following article and answer the question by choosing from the options.

She was my unicorn , as Alexa would say - the perfect one you would have been happy forever with , but could never have . And when I realized that it was never going to work out like we ... I had dreamed it would , I was crushed .

What is his definition of a unicorn ?
Pick your answer from:
[A]. Something that was perfect , but could n't be possessed .
[B]. None of the above choices .
[C]. Alexa was definately his definition of a perfect unicorn .
[D]. A dream that would make you happy forever ....A:
[A].