A well-known alchemist and only known maker of the Philosopher's Stone, a legendary substance with incredible powers.
The participle in this sentence is "sweating". It's a participle of the verb " to sweat" and it's a present participle: which we know because it ends with an -ing (past participles end with "-ed).
Jarvis likes jazz and often attends jazz concerts.
I think C because its talking about what is behind the story who did it how and why
