The answer they're looking for is A, but even that is kind of misleading. It's not really a "high energy" bond--there's no more energy in it than any other acid anhydride bond. But because of several factors that they likely have not told you in class, the energy released upon its hydrolysis is high.
Calling it a "high energy bond" is an unfortunate slang that has somehow become enshrined in the teaching of biochemistry for decades, much like "god particle," "big bang," "central dogma," etc. Great as a soundbite or for headlines, but not for helping students really understand.
In fairness, in most cases, if you read your textbook carefully enough you'll see that this has been clarified, but such details often get lost in the mix and all anyone remembers is "high energy bond."