Answer: Phreaker
Step-by-step explanation:
Phreaker is defined as the unauthorized attack on authorized communication system for stealing and manipulation phone networks.
- Exploring,searching and identifying telecommunication field with help of technologies,equipment,tools etc is done to exploit the system and resources .
- Other options are incorrect because phone hacking is attacking phone device, commh@ck3r is also hacking source and hacktivist hacks system to impact social and political field.
- Thus, the correct option is option(d)