Answer :
Answer:
Participating in Democracy is a civic responsability; showing engagement and actively work to promote certain cause or political organization is definitely key when it comes to be professionally involved in politics.
To become a USA senator certain conditions and skills are to be met, such as having educational background in politics or obtaining support from a local party, getting involed with local committees, and of course meet the legal age and citizenship requirements.
Thereby, albeit all the elements in those options would somehow contribute in such story, the ones that would produce a significant impact in the outcome would be c), d), and e). due to the engagement factor, but especially option d). which demostrates the conviction, commitment and the intent specifically related to the matter.