Final answer:
In the book 'Impulse' by Ellen Hopkins, Tony tries to kill himself by overdosing on pills (Option A).
Step-by-step explanation:
The question mentions 'Tony' but seems to describe the circumstances of Anthony Marston from Agatha Christie's novel, who died from choking on his drink, which had been poisoned with cyanide. Dr. Armstrong analyzed the drink and suggested suic*de. The provided options do not align with Marston's death.
In the book Impulse by Ellen Hopkins, the character named Tony attempts suic*de by overdosing on pills. The specific method is described in the following lines from the book: 'Tony was back, this time because he'd taken an excessive dose of a drug he'd planned to put in his own hands.' This indicates that Tony ingested a large amount of drugs to try to end his life.
Thus, the correct option is A.
Your question is incomplete, but most probably your full question was
How did Tony try to kill himself?
a. Overdose on pills
b. Jumping from a height
c. Slitting his wrists
d. Carbon monoxide poisoning
(Reference: Impulse by Ellen Hopkins)