The correct answer is B. Bird Expert Lee Sparks describes Harpy Eagles as "oddly attractive yet insanely dangerous predators"
Explanation:
Signal phrases serve for two main purposes the first is to introduce a quote or citation and the second is to show the author of a source is credible, usually by pointing out the author is an expert in the specific field. According to this, the best signal phrase would be the one in option B because by stating "Bird Expert Lee Sparks describes" you can show Lee sparks is an expert in the field, and therefore the opinion of the author is valid. Also, in this option, the words of the author are enclosed by quotation marks, which is necessary considering these are the exact words of Lee Sparks.
