What does the word ’cause’ mean in Gita 2.47 “Never consider yourself to be the cause of the results of your activities…”?

I have a question regarding Bhagavad gita verse 2.47 “Never consider yourself to be the cause of the results of your activities…”.
What does the word “cause” essentially mean?
1) producer.
2)responsible.
3) or some other relative synonym?
Eagerly awaiting your reply.
Your humble servant,
Sushant.